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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED
MANAGEMENT INVESTMENT COMPANY

Investment Company Act File Number: 811-21076

Registrant Name: PIMCO Municipal Income Fund II

Address of Principal Executive Offices: 1345 Avenue of the Americas New York, New York 10105

Name and Address of Agent for Service: Lawrence G. Altadonna – 1345 Avenue of the Americas New York, New York 10105

Registrant’s telephone number, including area code: 212-739-3371

Date of Fiscal Year End: May 31, 2009

Date of Reporting Period: August 31, 2008

Form N-Q is to be used by management investment companies, other than small business investment companies registered on Form N-5 (§§ 239.24 and 274.5 of this chapter), to file reports with the Commission, not later than 60 days after the close of the first and third fiscal quarters, pursuant to rule 30b 1-5 under the Investment Company Act of 1940 (17 CFR 270.30b1-5). The Commission may use the information provided on Form N-Q in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-Q, and the Commission will make this information public. A registrant is not required to the collection of information contained in Form N-Q unless the Form displays a currently valid Office of Management and Budget (“OMB”) control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to the Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.


Item 1. Schedule of Investments

PIMCO Municipal Income Fund II Schedule of Investments
August 31, 2008 (unaudited)
Principal            
Amount       Credit Rating    
(000)       (Moody's/S&P)   Value*
MUNICIPAL BONDS & NOTES—96.8%        
    Alabama—2.4%        
$10,000   Birmingham Baptist Medical Centers Special Care Facs.        
         Financing Auth. Rev., 5.00%, 11/15/30, Ser. A   Baa1/NR   $8,509,300
1,750   Huntsville Health Care Auth. Rev.,        
         5.75%, 6/1/32, Ser. B, (Pre-refunded @ $101, 6/1/12) (b)   A2/NR   1,949,850
16,580   Jefferson Cnty. Sewer Rev.,        
         4.75%, 2/1/38, Ser. B, (Pre-refunded @ $100, 8/1/12) (FGIC) (b)   Aaa/AAA   17,547,940
    Montgomery BMC Special Care Facs. Financing Auth. Rev. (MBIA),        
1,235        5.00%, 11/15/29, Ser. B   A2/AA   1,203,409
2,200        Baptist Health, 5.00%, 11/15/24   A2/AA   2,232,252
2,650   Tuscaloosa Educational Building Auth. Rev., Stillman College,        
         5.00%, 6/1/26   NR/BBB-   2,282,312
            33,725,063
 
    Alaska—0.5%        
5,900   Northern Tobacco Securitization Corp. Rev., 5.00%, 6/1/46, Ser. A   Baa3/NR   4,214,075
3,550   State Housing Finance Corp. Rev., 5.25%, 6/1/32, Ser. C (MBIA)   A2/AA   3,516,417
            7,730,492
 
    Arizona—5.8%        
    Health Facs. Auth. Rev.,        
6,500        Beatitudes Project, 5.20%, 10/1/37   NR/NR   5,100,810
1,300        Hospital System, 5.75%, 12/1/32, (Pre-refunded @ $101, 12/1/12) (b)   NR/BBB   1,446,185
    Pima Cnty. Industrial Dev. Auth. Rev.,        
3,500        Center for Academic Success, 5.50%, 7/1/37 (c)   NR/BBB-   3,010,070
29,700        Correctional Facs., 5.00%, 9/1/39   Aa2/AA   29,239,650
33,000   Salt River Project Agricultural Improvement & Power Dist. Rev.,        
         5.00%, 1/1/37, Ser. A (f)   Aa1/AA   33,421,740
10,500   Salt Verde Financial Corp. Rev., 5.00%, 12/1/37   Aa3/AA-   8,789,340
            81,007,795
 
    Arkansas—0.1%        
13,000   Arkansas Dev. Finance Auth. Rev., zero coupon, 7/1/46 (AMBAC)   Aa3/NR   1,622,140
 
    California—5.1%        
9,610   Alameda Corridor Transportation Auth. Rev.,        
         zero coupon, 10/1/16, Ser. A (AMBAC)   Aa3/AA   6,588,328
    Golden State Tobacco Securitization Corp. Rev., Ser. A-1,        
6,000        5.00%, 6/1/33   Baa3/BBB   4,745,940
3,080        6.25%, 6/1/33   Aaa/AAA   3,367,518
9,000        6.75%, 6/1/39, (Pre-refunded @ $100, 6/1/13) (b)   Aaa/AAA   10,411,830
1,000   Rancho Cucamonga Community Facs. Dist., Special Tax,        
         6.30%, 9/1/23, Ser. A   NR/NR   1,005,580
    State, GO,        
800        5.00%, 6/1/37   A1/A+   782,040
28,600        5.00%, 11/1/37, Ser. 2670 (f)   A1/A+   27,954,212
10,900        5.00%, 12/1/37   A1/A+   10,669,574
4,700   Statewide Community Dev. Auth. Rev., Baptist Univ.,        
         9.00%, 11/1/17, Ser. B (c)   NR/NR   4,810,591
            70,335,613


PIMCO Municipal Income Fund II Schedule of Investments
August 31, 2008 (unaudited)
Principal            
Amount       Credit Rating    
(000)       (Moody's/S&P)   Value*
    Colorado—5.2%        
$30,000   Dawson Ridge Dist. No. 1, GO, zero coupon, 10/1/22, Ser. A   Aaa/NR   $15,558,000
    E-470 Public Highway Auth. Rev., Ser. B (MBIA),        
20,000        zero coupon, 9/1/35   A2/AA   3,868,600
15,000        zero coupon, 9/1/37   A2/AA   2,547,300
    Health Facs. Auth. Rev.,        
1,000        American Baptist Homes, 5.90%, 8/1/37, Ser. A   NR/NR   859,900
25,000        Catholic Health Initiatives, 5.50%, 3/1/32   Aa2/AA   26,263,000
18,305        Exempla, Inc., 5.625%, 1/1/33, Ser. A   A1/A-   18,195,353
6,500        Liberty Height, zero coupon, 7/15/22   Aaa/AAA   3,358,485
2,000   Housing & Finance Auth. Rev., Evergreen Country Day School,        
         5.875%, 6/1/37 (c)   NR/BB   1,776,660
            72,427,298
 
    District of Columbia—1.3%        
17,500   Washington D.C. Convention Center Auth. Tax Rev.,        
         4.75%, 10/1/28, (Pre-refunded @ $100, 10/1/08) (AMBAC)(b)   Aa3/AA   17,539,200
 
    Florida—4.8%        
2,310   Dev. Finance Corp. Rev., Learning Gate Community School,        
         6.00%, 2/15/37   NR/BBB-   2,119,217
8,000   Highlands Cnty. Health Facs. Auth. Rev., Adventist/Sunbelt Health System,        
         6.00%, 11/15/31, Ser. A, (Pre-refunded @ $101, 11/15/11) (b)   A1/NR   8,827,200
    Hillsborough Cnty. Industrial Dev. Auth. Rev.,        
635        Health Facs. Project, 5.625%, 8/15/23, Ser. A, (Pre-refunded @ $101, 8/15/09) (b)   Baa3/BBB   664,686
2,335        Pollution Control Rev., Tampa Electric Co., 5.50%, 10/1/23   Baa2/BBB-   2,192,005
7,135   Jacksonville Health Facs. Auth. Rev., 5.25%, 11/15/32, Ser. A   Aa1/AA   7,009,709
11,500   Lakeland Hospital System Rev., Regional Health System,        
         5.50%, 11/15/32, (Pre-refunded @ $101, 11/15/12) (b)   A2/NR   12,789,495
3,000   Leesburg Hospital Rev., Leesburg Regional Medical Center Project,        
         5.50%, 7/1/32   Baa1/BBB+   2,832,600
    Orange Cnty. Health Facs. Auth. Rev., Adventist Health System (b),        
2,550        5.625%, 11/15/32, (Pre-refunded @ $101, 11/15/12)   A1/NR   2,843,072
5,000        6.25%, 11/15/24, (Pre-refunded @ $100, 11/15/12)   A1/NR   5,652,950
500   Sarasota Cnty. Health Fac. Auth. Rev., 5.75%, 7/1/37   NR/NR   419,725
6,205   State Governmental Utility Auth. Rev., Barefoot Bay Utilities System,        
         5.00%, 10/1/29 (AMBAC)   Aa3/NR   6,206,489
5,000   Sumter Landing Community Dev. Dist. Rev.,        
         4.75%, 10/1/35, Ser. A (MBIA)   A2/AA   4,541,150
10,000   Tallahassee Rev., 5.00%, 10/1/37, Ser. 2617 (f)   Aa2/AA   10,101,400
1,500   Winter Springs Water & Sewer Rev., zero coupon, 10/1/29 (FGIC)   Baa3/A+   524,340
            66,724,038
 
    Georgia—0.5%        
2,775   Medical Center Hospital Auth. Rev., 5.25%, 7/1/37   NR/NR   2,210,815
9,600   Richmond Cnty. Dev. Auth. Rev., zero coupon, 12/1/21   Aaa/NR   5,229,792
            7,440,607
 
    Hawaii—1.4%        
19,170   Honolulu City & Cnty. Wastewater System Rev., First Board Resolution,        
         4.75%, 7/1/28 (FGIC)   Aa3/NR   18,998,620


PIMCO Municipal Income Fund II Schedule of Investments
August 31, 2008 (unaudited)
Principal            
Amount       Credit Rating    
(000)       (Moody's/S&P)   Value*
    Illinois—18.3%        
    Central Lake Cnty. JT Action Water Agcy. Rev., Ser. A (AMBAC),        
$2,935        5.125%, 5/1/28   Aa3/NR   $2,975,914
675        5.125%, 5/1/28, (Pre-refunded @ $100, 11/1/12) (b)   Aa3/NR   741,184
    Chicago, GO (FGIC),        
1,635        5.125%, 1/1/29, Ser. A   Aa3/AAA   1,646,641
3,415        5.125%, 1/1/29, Ser. A, (Pre-refunded @ $101, 1/1/09) (b)   Aa3/AA-   3,487,398
4,065        5.50%, 1/1/40   Aa3/AA-   4,192,885
    Chicago, Lake Shore East, Special Assessment,        
3,162        6.625%, 12/1/22   NR/NR   3,189,636
6,700        6.75%, 12/1/32   NR/NR   6,715,946
    Chicago Board of Education School Reform, GO (FGIC),        
15,535        zero coupon, 12/1/16, Ser. A   A1/AA-   10,958,078
5,000        zero coupon, 12/1/28, Ser. A   A1/AA-   1,730,850
4,500        zero coupon, 12/1/31   A1/AA-   1,283,805
    Chicago City Colleges, GO (FGIC),        
32,670        zero coupon, 1/1/37   Aa3/AA-   6,522,239
29,145        zero coupon, 1/1/38   Aa3/AA-   5,481,300
32,670        zero coupon, 1/1/39   Aa3/AA-   5,786,837
5,000   Cicero, GO, 5.25%, 12/1/31 (MBIA)   A2/AA   5,123,750
    Finance Auth. Rev.,        
2,500        Christian Homes, Inc., 5.75%, 5/15/31, Ser. A   NR/NR   2,149,450
250        Leafs Hockey Club, 6.00%, 3/1/37, Ser. A   NR/NR   215,760
         Regency Park,        
10,000              zero coupon, 7/15/23   NR/AAA   4,883,900
134,650              zero coupon, 7/15/25   NR/AAA   58,548,513
1,500        Sedgebrook, Inc., 6.00%, 11/15/42, Ser. A   NR/NR   1,314,600
    Health Facs. Auth. Rev.,        
5,000        Condell Medical Center, 5.50%, 5/15/32   Baa3/NR   4,476,750
20,100        Elmhurst Memorial Healthcare, 5.625%, 1/1/28   Baa1/NR   19,556,094
    Hillside, Tax Allocation, Mannheim Redev. Project,        
4,500        6.55%, 1/1/20   NR/NR   4,446,450
2,900        7.00%, 1/1/28   NR/NR   2,845,480
    Metropolitan Pier & Exposition Auth. Rev. (MBIA),        
60,000        zero coupon, 12/15/30   A1/AAA   18,665,400
50,000        zero coupon, 12/15/33   A1/AAA   12,841,500
2,460        zero coupon, 6/15/38   A1/AAA   488,876
68,470   State Sports Facs. Auth. Rev., 5.50% (zero coupon until 6/15/10),        
         6/15/30 (AMBAC)   Aa3/AA   64,358,376
            254,627,612
 
    Indiana—0.3%        
4,125   Fort Wayne Pollution Control Rev., 6.20%, 10/15/25   Caa2/B-   2,796,585
990   Vigo Cnty. Hospital Auth. Rev., 5.80%, 9/1/47 (a)(c)   NR/NR   833,016
            3,629,601
 
    Iowa—4.1%        
    Finance Auth. Rev.,        
         Deerfield Retirement Community, Inc.,        
250              5.50%, 11/15/27, Ser. A   NR/NR   192,195
1,075              5.50%, 11/15/37   NR/NR   767,410
4,500        Edgewater LLC, 6.75%, 11/15/42   NR/NR   4,221,540
1,000        Wedum Walnut Ridge LLC, 5.625%, 12/1/45, Ser. A   NR/NR   814,160
2,300   Higher Education Loan Auth. Rev., Grandview College, 5.10%, 10/1/36   NR/NR   2,017,698


PIMCO Municipal Income Fund II Schedule of Investments
August 31, 2008 (unaudited)
Principal            
Amount       Credit Rating    
(000)       (Moody's/S&P)   Value*
    Iowa (continued)        
    Tobacco Settlement Auth. of Iowa Rev., Ser. B,        
$46,000        5.60%, 6/1/34   Baa3/BBB   $38,985,920
8,850        5.60%, 6/1/35, (Pre-refunded @ $101, 6/1/11) (b)   NR/AAA   9,583,577
            56,582,500
    Kansas—0.2%        
2,800   Univ. of Kansas Hospital Auth. Rev.,        
         5.625%, 9/1/32, (Pre-refunded @ $100, 9/1/12) (b)   NR/AAA   3,111,304
 
    Kentucky—0.2%        
2,500   Economic Dev. Finance Auth. Rev., Hospital Facs. Rev.,        
         Catholic Healthcare Partners, 5.25%, 10/1/30   A1/AA-   2,455,825
 
    Louisiana—4.8%        
    Public Facs. Auth. Rev., Ochsner Clinic Foundation, Ser. B,        
20,400        5.50%, 5/15/32, (Pre-refunded @ $100, 5/15/26) (b)   Aaa/NR   23,137,680
3,300        5.50%, 5/15/47   A3/NR   3,043,359
44,395   Tobacco Settlement Financing Corp. Rev., 5.875%, 5/15/39, Ser. 2001-B   Baa3/BBB   39,910,661
            66,091,700
 
    Maryland—0.4%        
    Health & Higher Educational Facs. Auth. Rev.,        
1,010        5.30%, 1/1/37   NR/NR   808,929
4,050        6.00%, 1/1/43   NR/BBB-   3,974,508
1,000   Adventist Healthcare, 5.75%, 1/1/25, Ser. A   Baa2/NR   988,450
            5,771,887
 
    Massachusetts—3.3%        
12,050   Austin Trust Rev., 4.75%, 8/1/37 (FSA)(f)   Aaa/AAA   11,555,950
14,500   Bay Transportation Auth. Rev.,        
         4.75%, 7/1/34, Ser. A, (Pre-refunded @ $100, 7/1/15) (b)(f)   Aa1/AAA   15,904,904
4,610   Dev. Finance Agcy. Rev., 6.75%, 10/15/37, Ser. A   NR/NR   4,238,019
    State Turnpike Auth. Rev., Ser. A (AMBAC),        
4,295        4.75%, 1/1/34   Aa3/AA   4,183,588
10,325        5.00%, 1/1/39   Aa3/AA   10,118,913
            46,001,374
 
    Michigan—2.8%        
8,500   Detroit City School Dist., GO,        
         5.00%, 5/1/32, Ser. A, (Pre-refunded @ $100, 5/1/13)        
         (FGIC)(Q-SBLF)(b)   Aa3/AA-   9,283,870
4,545   Garden City Hospital Finance Auth. Rev., 5.00%, 8/15/38, Ser. A   NR/NR   3,292,898
800   Public Educational Facs. Auth. Rev., 6.50%, 9/1/37 (c)   NR/BBB-   763,952
500   Star International Academy, CP, 6.125%, 3/1/37   NR/BB+   444,620
5,000   State Hospital Finance Auth. Rev.,        
         Ascension Health, 5.25%, 11/15/26, Ser. B   Aa1/AA   4,964,850
         Oakwood Group, Ser. A,        
13,500        5.75%, 4/1/32   A2/A   13,220,685
1,925        6.00%, 4/1/22   A2/A   1,974,299
6,000   Tobacco Settlement Finance Auth. Rev., 6.00%, 6/1/48, Ser. A   NR/BBB   4,989,600
            38,934,774
 
    Minnesota—0.5%        
1,300   Meeker Cnty. Rev., 5.75%, 11/1/37   NR/NR   1,204,983
1,500   Minneapolis Rev., Providence Project, 5.75%, 10/1/37, Ser. A   NR/NR   1,288,005
280   Minneapolis, Tax Allocation, Grant Park Project, 5.35%, 2/1/30   NR/NR   249,250


PIMCO Municipal Income Fund II Schedule of Investments
August 31, 2008 (unaudited)
Principal            
Amount       Credit Rating    
(000)       (Moody's/S&P)   Value*
    Minnesota (continued)        
    North Oaks Presbyterian Homes Rev.,        
$2,640        6.00%, 10/1/33   NR/NR   $2,515,155
1,530        6.125%, 10/1/39   NR/NR   1,467,484
500   Oronoco Multifamily Housing Rev., 5.40%, 6/1/41   NR/NR   437,270
            7,162,147
 
    Mississippi—0.3%        
3,605   Business Finance Corp., Pollution Control Rev., 5.875%, 4/1/22   Ba1/BBB   3,546,960
740   Dev. Bank Special Obligation Projects & Equipment Acquisitions Rev.,        
         5.00%, 7/1/24 (AMBAC)   Aa3/AA   709,475
            4,256,435
 
    Missouri—0.3%        
2,600   Branson Regional Airport Transportation Dev. Dist. Rev.,        
         6.00%, 7/1/37, Ser. A   NR/NR   2,192,580
800   Hanley Road & North of Folk Ave. Transportation Dist. Rev.,        
         5.00%, 10/1/25   NR/NR   723,944
1,500   St. Louis Parking Rev., Downtown Parking Facs.,        
         6.00%, 2/1/28, (Pre-refunded @ $100, 2/1/12) (b)   NR/NR   1,662,690
            4,579,214
 
    Nevada—0.5%        
1,450   Clark Cnty., GO, 5.00%, 6/1/31 (FGIC)   Aa1/AA+   1,453,944
    Reno Transportation Project Rev.,        
         (Pre-refunded @ $100, 6/1/12) (AMBAC)(b),        
2,000              5.125%, 6/1/32   Aa3/AA   2,173,660
3,500              5.125%, 6/1/37   Aa3/AA   3,803,905
            7,431,509
 
    New Hampshire—0.2%        
    Health & Education Facs. Auth. Rev., Catholic Medical Center,        
360        6.125%, 7/1/32   Baa1/BBB+   361,624
2,640        6.125%, 7/1/32, (Pre-refunded @ $101, 7/1/12) (b)   Baa1/BBB+   2,988,163
            3,349,787
 
    New Jersey—3.5%        
950   Burlington Cnty. Bridge Commission Rev., 5.625%, 1/1/38   NR/NR   817,380
    Economic Dev. Auth. Rev.,        
         Arbor Glen,        
525              6.00%, 5/15/28   NR/NR   500,488
225              6.00%, 5/15/28, Ser. A, (Pre-refunded @ $102, 5/15/09) (b)   NR/NR   236,151
         Kapkowski Road Landfill, Special Assessment,        
4,000              5.75%, 10/1/21   Baa3/NR   4,038,280
11,405              5.75%, 4/1/31   Baa3/NR   10,813,879
1,100        Seabrook Village, 5.25%, 11/15/36   NR/NR   900,141
250        Seashore Gardens, 5.375%, 11/1/36   NR/NR   202,378
    Health Care Facs. Financing Auth. Rev.,        
1,500        St. Peter's Univ. Hospital, 5.75%, 7/1/37   Baa2/BBB-   1,421,250
1,830        Trinitas Hospital, 5.25%, 7/1/30, Ser. A   Baa3/BBB-   1,529,606
3,500   State Educational Facs. Auth. Rev.,        
         Fairfield Dickinson Univ., 6.00%, 7/1/25, Ser. D   NR/NR   3,551,660


PIMCO Municipal Income Fund II Schedule of Investments
August 31, 2008 (unaudited)
Principal            
Amount       Credit Rating    
(000)       (Moody's/S&P)   Value*
    New Jersey (continued)        
    Tobacco Settlement Financing Corp. Rev.,        
$13,150        5.00%, 6/1/41, Ser. 1A   Baa3/BBB   $9,398,436
1,285        6.00%, 6/1/37, (Pre-refunded @ $100, 6/1/12) (b)   Aaa/AAA   1,433,918
3,095        6.125%, 6/1/42, (Pre-refunded @ $100, 6/1/12) (b)   Aaa/AAA   3,467,359
6,150        6.25%, 6/1/43, (Pre-refunded @ $100, 6/1/13) (b)   Aaa/AAA   7,053,312
2,500        6.75%, 6/1/39, (Pre-refunded @ $100, 6/1/13) (b)   Aaa/AAA   2,922,175
            48,286,413
 
    New Mexico—0.3%        
5,000   Farmington Pollution Control Rev., 5.80%, 4/1/22   Baa3/BB+   4,765,100
 
    New York—1.2%        
1,200   Erie Cnty. Industrial Dev. Agcy., Orchard Park Rev., 6.00%, 11/15/36   NR/NR   1,051,728
10,000   Liberty Dev. Corp. Rev., 5.25%, 10/1/35 (f)   Aa3/AA-   10,130,100
1,100   Nassau Cnty. Industrial Dev. Agcy. Rev., Amsterdam at Harborside,        
         6.70%, 1/1/43, Ser. A   NR/NR   1,081,014
4,750   New York City Municipal Water Finance Auth.,        
         Water & Sewer System Rev., 5.00%, 6/15/37, Ser. D (f)   Aa2/AAA   4,793,130
            17,055,972
 
    North Carolina—0.1%        
    Medical Care Commission Rev.,        
550        Salemtowne, 5.10%, 10/1/30   NR/NR   470,102
1,000        Village at Brookwood, 5.25%, 1/1/32   NR/NR   812,880
            1,282,982
 
    North Dakota—0.3%        
3,710   Stark Cnty. Healthcare Rev., Benedictine Living Communities,        
         6.75%, 1/1/33   NR/NR   3,490,850
 
    Ohio—0.5%        
7,500   Lorain Cnty. Hospital Rev., Catholic Healthcare, 5.375%, 10/1/30   A1/AA-   7,477,425
 
    Pennsylvania—3.2%        
    Allegheny Cnty. Hospital Dev. Auth. Rev.,        
22,600        5.375%, 11/15/40, Ser. A   Ba3/BB   17,052,830
505        9.25%, 11/15/15, Ser. B, (Pre-refunded @ $102, 11/15/10) (b)   Ba3/AAA   574,553
1,000        9.25%, 11/15/22, Ser. B, (Pre-refunded @ $102, 11/15/10) (b)   Ba3/AAA   1,166,330
5,700        9.25%, 11/15/30, Ser. B, (Pre-refunded @ $102, 11/15/10) (b)   Ba3/AAA   6,648,081
    Cumberland Cnty. Auth., Retirement Community Rev.,        
         Messiah Village, Ser. A,        
750              5.625%, 7/1/28   NR/BBB-   697,868
670              6.00%, 7/1/35   NR/BBB-   634,959
4,500        Wesley Affiliated Services,        
               7.25%, 1/1/35, Ser. A, (Pre-refunded @ $101, 1/1/13) (b)   NR/NR   5,335,830
3,250   Harrisburg Auth. Rev., 6.00%, 9/1/36   NR/NR   3,099,948
    Montgomery Cnty. Higher Education & Health Auth. Hospital Rev.,        
         Abington Memorial Hospital, Ser. A,        
5,000              5.125%, 6/1/27   NR/A   4,798,900
3,750              5.125%, 6/1/32   NR/A   3,494,025
500   Pittsburgh & Allegheny Cntys. Public Auditorium Auth. Rev.,        
         5.00%, 2/1/29 (AMBAC)   Aa3/AA   502,595
            44,005,919


PIMCO Municipal Income Fund II Schedule of Investments
August 31, 2008 (unaudited)
Principal            
Amount       Credit Rating    
(000)       (Moody's/S&P)   Value*
    Puerto Rico—0.3%        
$3,320   Electric Power Auth. Power Rev.,        
         5.125%, 7/1/29, Ser. NN, (Pre-refunded @ $100, 7/1/13) (b)   A3/AAA   $3,680,220
 
    Rhode Island—4.9%        
76,200   Tobacco Settlement Financing Corp. Rev., 6.25%, 6/1/42, Ser. A   Baa3/BBB   68,781,168
 
    South Carolina—4.1%        
7,745   Greenville Cnty. School Dist. Rev., Building Equity Sooner Tomorrow,        
         5.50%, 12/1/28, (Pre-refunded @ $101, 12/1/12) (b)   Aaa/AA   8,687,334
    Jobs-Economic Dev. Auth. Rev., Bon Secours,        
14,350        5.625%, 11/15/30   A3/A-   14,267,631
3,770        5.625%, 11/15/30, (Pre-refunded @ $100, 11/15/12) (b)   A3/A-   4,201,477
    Lexington Cnty. Health Services Dist. Hospital Rev. (b),        
15,000        5.50%, 11/1/32, (Pre-refunded @ $100, 11/1/13)   A2/A+   16,809,600
3,500        5.50%, 5/1/37, (Pre-refunded @ $100, 5/1/14)   A2/A+   3,942,400
5,000        5.75%, 11/1/28, (Pre-refunded @ $100, 11/1/13)   A2/A+   5,662,600
3,250   Tobacco Settlement Rev. Management Auth. Rev.,        
         6.375%, 5/15/28, Ser. B, (Pre-refunded @ $101, 5/11/15) (b)   Baa3/BBB   3,575,325
            57,146,367
 
    Tennessee—0.5%        
3,000   Energy Acquisition Corp. Rev., 5.00%, 2/1/23, Ser. C   A2/AA-   2,744,670
3,750   Knox Cnty. Health Educational & Housing Facs. Board Rev.,        
         5.25%, 10/1/30   A1/AA-   3,683,738
500   Sullivan Cnty. Health Educational & Housing Facs. Rev.,        
         5.25%, 9/1/36, Ser. C   NR/BBB+   433,105
            6,861,513
 
    Texas—8.5%        
10   Arlington Independent School Dist., GO, 5.00%, 2/15/24 (PSF-GTD)   Aaa/NR   10,029
    Aubrey Independent School Dist., GO (PSF-GTD),        
130        5.50%, 2/15/33   Aaa/NR   136,300
4,350        5.50%, 2/15/33, (Pre-refunded @ $100, 8/15/14) (b)   Aaa/NR   4,938,250
17,500   Austin Trust, GO, 4.75%, 4/1/36 (f)   Aa1/AA   16,797,900
6,500   Brazos Cnty. Health Facs. Dev. Corp. Rev., Franciscan Services Corp.,        
         5.375%, 1/1/32   NR/A-   6,220,630
2,700   Comal Cnty. Health Facs. Dev. Rev., McKenna Memorial Hospital Project,        
         6.25%, 2/1/32, (Pre-refunded @ $100, 2/1/13) (b)   Baa2/AAA   3,081,294
20,000   Frisco Independent School Dist., GO, zero coupon, 8/15/34 (PSF-GTD)   Aaa/NR   4,856,600
5,250   Harris Cnty. Health Facs. Dev. Corp. Rev., St. Luke's Episcopal Hospital,        
         5.375%, 2/15/26, Ser. A, (Pre-refunded @ $100, 8/15/11) (b)   NR/AAA   5,670,000
700   HFDC of Central Texas, Inc. Rev., Village at Gleannloch Farms,        
         5.50%, 2/15/37, Ser. A   NR/NR   556,087
    Keller Independent School Dist., GO (PSF-GTD),        
770        4.875%, 8/15/31   Aaa/AAA   770,932
6,730        4.875%, 8/15/31, (Pre-refunded @ $100, 8/15/09) (b)   Aaa/AAA   6,937,620
3,170   Little Elm Independent School Dist., GO,        
         5.30%, 8/15/29, Ser. A (PSF-GTD)   NR/AAA   3,275,593
6,250   North Dallas Thruway Auth. Rev., 4.75%, 1/1/29 (FGIC)   A2/A-   6,177,375
    North Harris Cnty. Regional Water Auth. Rev.,        
10,300        5.25%, 12/15/33   A3/A+   10,073,503
10,300        5.50%, 12/15/38   A3/A+   10,268,894


PIMCO Municipal Income Fund II Schedule of Investments
August 31, 2008 (unaudited)
Principal            
Amount       Credit Rating    
(000)       (Moody's/S&P)   Value*
    Texas (continued)        
$5,000   North Texas Tollway Auth. Rev., 5.625%, 1/1/33, Ser. B   A2/A-   $4,944,050
2,000   Sabine River Auth. Rev., 5.20%, 5/1/28   Caa1/CCC   1,451,100
10,025   State, GO, 4.75%, 4/1/35, Ser. A (f)   Aa1/AA   9,644,050
1,000   State Public Finance Auth. Rev., 5.875%, 12/1/36, Ser. A   Baa3/BBB-   932,930
    State Turnpike Auth. Central Turnpike System Rev., Ser. A (AMBAC),        
10,000        zero coupon, 8/15/19   Aa3/AA   5,842,500
8,880        5.00%, 8/15/42   Aa3/AA   8,369,134
3,250   State Water Financial Assistance, GO, 5.00%, 8/1/36   Aa1/AA   3,267,030
4,150   Willacy Cnty. Rev., 6.875%, 9/1/28, Ser. A-1   NR/NR   3,955,531
            118,177,332
 
    Utah—3.5%        
44,150   Utah Transit Auth. Rev., 4.75%, 6/15/35, Ser. B,        
         (Pre-refunded @ $100, 12/15/15) (FSA)(b)(f)   Aaa/AAA   48,681,556
 
    Virginia—0.6%        
    Fredericksburg Industrial Dev. Auth., Medicorp Health System Rev., Ser. B,        
2,500        5.125%, 6/15/33   A3/NR   2,325,875
4,000        5.25%, 6/15/27   A3/NR   3,938,680
2,050   James City Cnty. Economic Dev. Auth. Rev., 5.50%, 7/1/37, Ser. A   NR/NR   1,630,816
            7,895,371
 
    Washington—1.3%        
13,000   Health Care Facs. Auth. Rev., Virginia Mason Medical Center,        
         6.125%, 8/15/37, Ser. A   Baa2/BBB   12,235,210
6,800   State Housing Finance Commission Rev., Skyline at First Hill,        
         5.625%, 1/1/38, Ser. A   NR/NR   5,707,240
            17,942,450
 
    Wisconsin—0.7%        
    Badger Tobacco Asset Securitization Corp. Rev.,        
1,125        6.00%, 6/1/17   Baa3/BBB   1,128,229
7,150        6.125%, 6/1/27   Baa3/BBB   6,998,062
    Health & Educational Facs. Auth. Rev., Froedert & Community Health Oblig.,        
90        5.375%, 10/1/30   NR/AA-   90,110
910        5.375%, 10/1/30, (Pre-refunded @ $101, 10/1/11) (b)   NR/AA-   995,667
            9,212,068
    Total Municipal Bonds & Notes (cost—$1,334,326,608)       1,346,279,241
 
VARIABLE RATE NOTES (e)—3.2%        
    Alabama—0.4%        
4,450   Jefferson Cnty. Sewer Rev., 17.75%, 2/1/36, Ser. 352 (FGIC)(a)(c)(d)   Aaa/NR   4,974,966
 
    Colorado—0.2%        
2,250   Denver City & Cnty. Airport Rev.,        
         15.76%, 11/15/25, Ser. 425 (FSA)(a)(c)(d)   Aaa/NR   2,330,550
 
    Florida—0.3%        
2,830   Highlands Cnty. Health Facs. Auth. Rev., Adventist Health System,        
         5.00%, 11/15/31, Ser. C   A1/A+   2,572,187
1,782   Orange Cnty. School Board, CP,        
         16.56%, 8/1/24, Ser. 328 (MBIA)(a)(c)(d)   A1/NR   2,135,192
            4,707,379


PIMCO Municipal Income Fund II Schedule of Investments
August 31, 2008 (unaudited)
Principal            
Amount       Credit Rating    
(000)       (Moody's/S&P)   Value*
    Illinois—0.4%        
$1,780   Chicago, GO, 16.35%, 1/1/28, Ser. 332 (MBIA)(a)(c)(d)   A2/NR   $2,057,235
1,288   Cook Cnty., GO, 15.72%, 11/15/28, Ser. 403 (FGIC)(a)(c)(d)   Aa2/NR   1,346,153
2,000   State, GO, 17.61%, 4/1/27, Ser. 783 (FSA)(a)(c)(d)   Aaa/NR   2,321,400
            5,724,788
 
    Massachusetts—1.1%        
1,400   Boston Water & Sewer Community Rev.,        
         15.60%, 11/1/28, Ser. 434 (FGIC)(a)(c)(d)   Aa2/NR   1,435,490
2,200   State, GO, 17.85%, 11/1/30, Ser. 785 (FGIC-TCRS)(a)(c)(d)   Aa2/NR   3,196,380
    State Turnpike Auth. Rev. (MBIA)(a)(c)(d),        
7,366        0.12%, 1/1/37, Ser. 334   A2/NR   7,197,687
3,000        0.12%, 1/1/37, Ser. 489   NR/AAA   2,931,450
            14,761,007
 
    Nevada—0.0%        
325   State, GO, 15.52%, 5/15/28, Ser. 344 (FGIC)(a)(c)(d)   Aa1/NR   324,902
 
    Pennsylvania—0.1%        
1,670   Philadelphia School Dist., GO, 15.32%, 4/1/27, Ser. 345 (MBIA)(a)(c)(d)   Aa3/NR   1,818,380
 
    Texas—0.5%        
1,100   Houston Airport System Rev., 0.12%, 7/1/25, Ser. 404 (FGIC)(a)(c)(d)   A1/NR   1,101,870
    Houston Water & Sewer System Rev. (a)(c)(d),        
2,200        16.56%, 12/1/28, Ser. 427 (FSA)   Aaa/NR   2,620,310
3,070        17.82%, 12/1/30, Ser. 495 (FGIC)   NR/NR   4,112,419
            7,834,599
 
    Washington—0.2%        
2,275   Central Puget Sound Regional Transit Auth. Sales Tax & Motor Rev.,        
         11.92%, 2/1/28, Ser. 360 (FGIC)(a)(c)(d)   Aa2/NR   2,286,921
    Total Variable Rate Notes (cost—$39,653,600)       44,763,492
 
    Total Investments (cost—$1,373,980,208)—100.0%       $1,391,042,733


Notes to Schedule of Investments:

*

Portfolio securities and other financial instruments for which market quotations are readily available are stated at market value. Market value is generally determined on the basis of last reported sales prices, or if no sales are reported, based on quotes obtained from a quotation reporting system, established market makers, or pricing services.
Portfolio securities and other financial instruments for which market quotations are not readily available or if a development/event occurs that may significantly impact the value of a security are fair-valued, in good faith, pursuant to procedures established by the Board of Trustees or persons acting at their discretion pursuant to procedures established by the Board of Trustees. The Fund's investments are valued daily using prices supplied by an independent pricing service or dealer quotations, or the last quoted mean price for those securities for which the over-the-counter market is the primary market or for listed securities in which there were no sales. Prices obtained by Independent pricing services use information provided by market makers or estimates of market values obtained from yield data relating to investments or securities with similar characteristics. Exchange traded options and futures are valued at the settlement price determined by the relevant exchange. Short-term securities maturing in 60 days or less are valued at amortized cost, if their original term to maturity was 60 days or less, or by amortizing their value on the 61st day prior to maturity, if the original term to maturity exceeded 60 days. The prices used by the Fund to value securities may differ from the value that would be realized if the securities were sold. The Fund’s net asset value is normally determined daily as of the close of regular trading (normally, 4:00 p.m. Eastern time) on the New York Stock Exchange ("NYSE") on each day the NYSE is open for business.

 
(a) Private Placement—Restricted as to resale and may not have a readily available market. Securities with an aggregate value of $43,024,321, representing 3.09% of total investments.
 
(b) Pre-refunded bonds are collateralized by U.S. Government or other eligible securities which are held in escrow and used to pay principal and interest and retire the bonds at the earliest refunding date (payment date) and/or whose interest rates vary with changes in a designated base rate (such as the prime interest rate).
 
(c) 144A Security—Security exempt from registration, under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, typically only to qualified institutional buyers. Unless otherwise indicated, these securities are not considered to be illiquid.
 
(d) Inverse Floater—The interest rate shown bears an inverse relationship to the interest rate on another security or the value of an index. The interest rate disclosed reflects the rate in effect on August 31, 2008.
 
(e) Variable Rate Notes—Instruments whose interest rates change on specified date (such as a coupon date or interest payment date) and/or whose interest rates vary with changes in a designated base rate (such as the prime interest rate). The interest rate disclosed reflects the rate in effect on August 31, 2008.
 
(f) Residual Interest Bonds held in trust—Securities represent underlying bonds transferred to a separate securitization trust established in a tender option bond transaction in which the Fund acquired the residual interest certificates. These securities serve as collateral in a financing transaction.

Glossary:
AMBAC—insured by American Municipal Bond Assurance Corp.
CP—Certificates of Participation
FGIC—insured by Financial Guaranty Insurance Co.
FSA—insured by Financial Security Assurance, Inc.
GO—General Obligation Bond
GTD—Guaranteed
MBIA—insured by Municipal Bond Investors Assurance
NR—Not Rated
PSF—Public School Fund
Q-SBLF—Qualified School Bond Loan Fund
TCRS—Temporary Custodian Receipts


Other Investments:

(1) Futures contracts outstanding at August 31, 2008:

            Market            
            Value     Expiration   Unrealized  
  The Fund   Contracts     (000)     Date   Appreciation  
Short: U.S. Treasury Bonds Futures   (1,208 )   $(141,714 )   12/19/08   $745,576  

The Fund pledged $3,147,500 in cash to brokers as collateral for futures contracts.

(2) Interest rate swap agreements outstanding at August 31, 2008:

        Rate Type      
    Notional Amount Termination Payments Made   Payments Received   Unrealized  
Swap Counterparty    (000) Date by Fund   by Fund   Depreciation  
Morgan Stanley   $207,600 12/18/33 5.00%   3-Month USD-LIBOR   $(4,048,613 )
Royal Bank of Scotland   79,800 12/18/33 5.00%   3-Month USD-LIBOR   (1,353,603 )
                $(5,402,216 )
LIBOR - London Inter-bank Offered Rate                  
The Fund received $5,500,000 par value in U.S. Treasury Bills as collateral for swap contracts.          

Fair Value Measurements–Effective June 1, 2008, the Fund adopted Financial Accounting Standards Board Statement of Financial Accounting Standards No. 157, Fair Value Measurements (“FAS 157”). This standard clarifies the definition of fair value for financial reporting, establishes a framework for measuring fair value and requires additional disclosures about the use of the fair value measurements. The three levels of the fair value hierarchy under FAS 157 are described below.

  ª Level 1 – quoted prices in active markets for identical investments
  ª Level 2 – other significant observable inputs (including quoted prices for similar investments, interest rates,
prepayment speeds, credit risk, etc.)
  ª Level 3 – significant unobservable inputs (including the Fund's own assumptions in determining the fair value
of investments)

The valuation techniques used by the Fund to measure fair value during the period ended August 31, 2008 maximized the use of observable inputs and minimized the use of unobservable inputs. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities. At August 31, 2008, the Fund did not hold securities deemed as Level 3.

The following is a summary of the inputs used at August 31, 2008 in valuing the Fund’s investments carried at value:

    Investments in   Other Financial  
Valuation Inputs   Securities   Instruments  
Level 1 - Quoted Prices   $—   $745,576  
Level 2 - Other Significant          
   Observable Inputs   1,391,042,733   (5,402,216 )
Level 3 - Significant          
   Unobservable Inputs      
Total   $1,391,042,733   $(4,656,640 )


Item 2. Controls and Procedures

(a) The registrant's President & Chief Executive Officer and Treasurer, Principal Financial & Accounting Officer have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Act (17 CFR 270.30a -3 (c))), are effective based on their evaluation of these controls and procedures as of a date within 90 days of the filing date of this document.

(b) There were no significant changes in the registrant's internal controls over financial reporting (as defined in Rule 30a-3(d) under the Act (17 CFR 270.30a -3(d))) that occurred during the registrant’s last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 3. Exhibits

(a) Exhibit 99.302 Cert. – Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Registrant: PIMCO Municipal Income Fund II

By /s/ Brian S. Shlissel
President & Chief Executive Officer

Date: October 16, 2008

By /s/ Lawrence G. Altadonna
Treasurer, Principal Financial & Accounting Officer

Date: October 16, 2008

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dated indicated.

By /s/ Brian S. Shlissel
President & Chief Executive Officer

Date: October 16, 2008

By /s/ Lawrence G. Altadonna
Treasurer, Principal Financial & Accounting Officer

Date: October 16, 2008