UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    Form 13F

                               Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: September 30, 2008

Check here if Amendment [_]: Amendment Number:

This Amendment (Check only one): [_] is a restatement
                                 [_] adds new holdings entries

Institutional Investment Manager Filing this Report:

Name:    First Commonwealth Financial Corporation
Address: 22 North Sixth Street
         Indiana, PA, 15701

Form 13F File Number: 28-05151

The institutional investment manager filing this report and the person by whom
it is signed hereby represent that the person signing the report is authorized
to submit it, that all information contained herein is true, correct and
complete, and it is understood that all required items, statements, schedules,
lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:

Name:  Edward J. Lipkus, III
Title: Executive Vice President and Chief Financial Officer
Phone: (724) 463-4724

Signature, Place, and Date of Signing:


/s/ Edward J. Lipkus, III
-------------------------
   Edward J. Lipkus, III,     Indiana, PA,     November 5, 2008

Report Type(check only one):

[x]  13F HOLDINGS REPORT (Check here if all holdings of this reporting manager
     are reported in this report

[_]  13F NOTICE (Check here if no holdings reported are in this report, and all
     holdings are reported by other reporting manager(s))

[_]  13F COMBINATION REPORT (Check here if a portion of the holdings for this
     reporting manager are reported in this report and a portion are reported by
     other reporting manager(s).)




                              Form 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers:             1

Form 13F Information Table Entry Total:      208

Form 13F Information Table Value Total: $114,850 (thousands)

List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F file number(s) of all
institutional investment managers with respect to which this report is filed,
other than the manager filing this report.

Number: 1

Form 13F File Number: 28-11893

Name:




                           FORM 13F INFORMATION TABLE



COLUMN  1                      COL 2     COL 3     COL 4   COLUMN 5            COL 6      COL 7          COLUMN 8
                               TITLE              MARKET
                                 OF               VALUE    SHS OR   SH/ PUT/ INVESTMENT   OTHER      VOTING AUTHORITY
ISSUER                         CLASS     CUSIP   (X$1000)  PRN AMT  PRN CALL DISCRETION MANAGERS   SOLE     SHARED  NONE
---------------------------- --------- --------- -------- --------- --- ---- ---------- -------- --------- ------- -----
                                                                                  
3M CO                        COMMONMON 88579Y101      214     3,140 SH         DEFINED      1        2,270           870
3M CO                          COMMON  88579Y101      593     8,685 SH          OTHER       1        8,685
ABBOTT LABS                    COMMON  002824100    1,243    21,594 SH         DEFINED      1       20,206         1,388
ABBOTT LABS                    COMMON  002824100       50       867 SH          OTHER       1          867
ADOBE SYS INC                  COMMON  00724F101      798    20,211 SH         DEFINED      1       20,211
ADOBE SYS INC                  COMMON  00724F101       19       482 SH          OTHER       1          482
AIR PRODS & CHEMS INC          COMMON  009158106      542     7,915 SH         DEFINED      1        7,915
AIR PRODS & CHEMS INC          COMMON  009158106       20       296 SH          OTHER       1          296
ALLSTATE CORP                  COMMON  020002101      177     3,846 SH         DEFINED      1        2,962           884
ALLSTATE CORP                  COMMON  020002101      301     6,529 SH          OTHER       1        6,529
ALTRIA GROUP INC               COMMON  02209S103       64     3,202 SH         DEFINED      1        3,113            89
ALTRIA GROUP INC               COMMON  02209S103      617    31,115 SH          OTHER       1       31,115
ANHEUSER BUSCH COS INC         COMMON  035229103        8       117 SH         DEFINED      1          117
ANHEUSER BUSCH COS INC         COMMON  035229103      324     5,000 SH          OTHER       1        5,000
APACHE CORP                    COMMON  037411105      977     9,369 SH         DEFINED      1        9,369
APACHE CORP                    COMMON  037411105       98       937 SH          OTHER       1          413     524
APPLE INC                      COMMON  037833100      634     5,579 SH         DEFINED      1        5,579
APPLE INC                      COMMON  037833100       21       185 SH          OTHER       1          185
AT&T INC                       COMMON  00206R102    1,817    65,075 SH         DEFINED      1       61,590         3,485
AT&T INC                       COMMON  00206R102      229     8,194 SH          OTHER       1        8,189             5
AUTODESK INC                   COMMON  052769106      515    15,363 SH         DEFINED      1       15,363
AUTODESK INC                   COMMON  052769106       24       705 SH          OTHER       1          705
BANK OF AMERICA CORPORATION    COMMON  060505104       42     1,194 SH         DEFINED      1          600           594
BANK OF AMERICA CORPORATION    COMMON  060505104      219     6,257 SH          OTHER       1        6,257
BANK OF NEW YORK MELLON CORP   COMMON  064058100      317     9,719 SH         DEFINED      1        9,719
BANK OF NEW YORK MELLON CORP   COMMON  064058100      125     3,822 SH          OTHER       1        1,372     400 2,050
BECTON DICKINSON & CO          COMMON  075887109    1,031    12,845 SH         DEFINED      1       12,354           491
BECTON DICKINSON & CO          COMMON  075887109       80       993 SH          OTHER       1          993
BERKSHIRE SECURITIES           COMMON  084991868    1,412     6,140 SH         DEFINED      1        6,140
BERKSHIRE SECURITIES           COMMON  084991868      414     1,800 SH          OTHER       1        1,800
BOEING CO                      COMMON  097023105       34       588 SH         DEFINED      1          588
BOEING CO                      COMMON  097023105      217     3,786 SH          OTHER       1        3,786
BP PLC                         COMMON  055622104      305     6,083 SH         DEFINED      1        6,024            59
BP PLC                         COMMON  055622104      331     6,592 SH          OTHER       1        5,590   1,002
BUNGE LIMITED                  COMMON  G16962105      452     7,151 SH         DEFINED      1        7,151
BUNGE LIMITED                  COMMON  G16962105       16       250 SH          OTHER       1          250
BURLINGTON NORTHN SANTA FE C   COMMON  12189T104      275     2,970 SH         DEFINED      1        2,970
CHEVRON CORP NEW               COMMON  166764100    1,325    16,067 SH         DEFINED      1       13,944         2,123
CHEVRON CORP NEW               COMMON  166764100      535     6,492 SH          OTHER       1        5,992           500
CISCO SYS INC                  COMMON  17275R102    1,067    47,308 SH         DEFINED      1       43,408         3,900
CISCO SYS INC                  COMMON  17275R102      215     9,533 SH          OTHER       1        9,533
CITIGROUP INC                  COMMON  172967101      350    17,060 SH         DEFINED      1       17,060
CITIGROUP INC                  COMMON  172967101       54     2,617 SH          OTHER       1        2,503     114
CNB FINL CORP PA               COMMON  126128107      256    23,400 SH         DEFINED      1       23,400
CONOCOPHILLIPS                 COMMON  20825C104      758    10,350 SH         DEFINED      1        8,580         1,770
CONOCOPHILLIPS                 COMMON  20825C104      168     2,300 SH          OTHER       1        2,300
CORNING INC                    COMMON  219350105      247    15,809 SH         DEFINED      1       15,809
CORNING INC                    COMMON  219350105       39     2,512 SH          OTHER       1        2,512
CVS CAREMARK CORPORATION       COMMON  126650100      717    21,290 SH         DEFINED      1       21,290
CVS CAREMARK CORPORATION       COMMON  126650100       38     1,136 SH          OTHER       1        1,136
DISNEY WALT CO                 COMMON  254687106    1,054    34,328 SH         DEFINED      1       32,918         1,410
DISNEY WALT CO                 COMMON  254687106       45     1,470 SH          OTHER       1        1,470
DOMINION RES INC VA NEW        COMMON  25746U109      791    18,499 SH         DEFINED      1       18,478            21
DOMINION RES INC VA NEW        COMMON  25746U109      137     3,204 SH          OTHER       1        3,204
DU PONT E I DE NEMOURS & CO    COMMON  263534109      282     7,004 SH         DEFINED      1        7,004
DU PONT E I DE NEMOURS & CO    COMMON  263534109       86     2,142 SH          OTHER       1          942   1,200
EASTMAN CHEM CO                COMMON  277432100      547     9,928 SH         DEFINED      1        9,928
EASTMAN CHEM CO                COMMON  277432100       38       686 SH          OTHER       1          686
EBAY INC                       COMMON  278642103      298    13,302 SH         DEFINED      1       13,302
EBAY INC                       COMMON  278642103        7       300 SH          OTHER       1          300
EDISON INTL                    COMMON  281020107      458    11,487 SH         DEFINED      1       11,465            22
EDISON INTL                    COMMON  281020107       11       280 SH          OTHER       1          280
EMBRYO DEV CORP                COMMON  290818103       --    15,000 SH         DEFINED      1       15,000
EMERSON ELEC CO                COMMON  291011104       62     1,520 SH         DEFINED      1          640           880
EMERSON ELEC CO                COMMON  291011104      698    17,110 SH          OTHER       1       17,110
ESB FINANCIAL CORP             COMMON  26884F102      118    12,510 SH         DEFINED              12,510      --    --
EXELON CORP                    COMMON  30161N101      128     2,042 SH         DEFINED      1        2,042
EXELON CORP                    COMMON  30161N101       89     1,416 SH          OTHER       1        1,416
EXXON MOBIL CORP               COMMON  30231G102    3,575    46,036 SH         DEFINED      1       46,036
EXXON MOBIL CORP               COMMON  30231G102    2,081    26,797 SH          OTHER       1        9,405  17,392
FIRST COMWLTH FINL CORP PA     COMMON  319829107   14,933 1,108,615 SH         DEFINED      1    1,105,149   3,466
FIRST COMWLTH FINL CORP PA     COMMON  319829107      401    29,778 SH          OTHER       1       19,949   9,829
FIRSTMERIT CORP                COMMON  337915102      210    10,000 SH         DEFINED              10,000      --    --
FNB CORP PA                    COMMON  302520101      163    10,224 SH         DEFINED      1       10,224
FNB CORP PA                    COMMON  302520101        1        43 SH          OTHER       1           43
FRANKLIN RES INC               COMMON  354613101      510     5,788 SH         DEFINED      1        5,788
FRANKLIN RES INC               COMMON  354613101       15       175 SH          OTHER       1          175
GATEWAY BANK OF PENNSYLVANIA   COMMON  869099101       50     5,000 SH         DEFINED               5,000      --    --
GENERAL ELECTRIC CO            COMMON  369604103    1,515    59,409 SH         DEFINED      1       56,070         3,339






                                                                                  
GENERAL ELECTRIC CO            COMMON  369604103    3,209   125,848 SH          OTHER       1      123,778   1,730   340
GENZYME CORP                   COMMON  372917104      458     5,658 SH         DEFINED      1        5,516           142
GENZYME CORP                   COMMON  372917104       57       700 SH          OTHER       1          700
GOODRICH CORP                  COMMON  382388106      543    13,045 SH         DEFINED      1       13,009            36
GOODRICH CORP                  COMMON  382388106        7       180 SH          OTHER       1          180
GOOGLE INC                     COMMON  38259P508      690     1,708 SH         DEFINED      1        1,558           150
GOOGLE INC                     COMMON  38259P508       13        33 SH          OTHER       1           33
HARLEYSVILLE NATIONAL CORP     COMMON  412850109      804    47,349 SH         DEFINED              47,349      --    --
HARTFORD FINL SVCS GROUP INC   COMMON  416515104      502    12,259 SH         DEFINED      1       11,699           560
HARTFORD FINL SVCS GROUP INC   COMMON  416515104       35       852 SH          OTHER       1          852
HELMERICH & PAYNE INC          COMMON  423452101      875    20,262 SH         DEFINED      1       20,243            19
HELMERICH & PAYNE INC          COMMON  423452101       19       450 SH          OTHER       1          450
INGERSOLL-RAND COMPANY LTD     COMMON  G4776G101       22       702 SH         DEFINED      1          597           105
INGERSOLL-RAND COMPANY LTD     COMMON  G4776G101      374    12,000 SH          OTHER       1       12,000
INTEL CORP                     COMMON  458140100      279    14,908 SH         DEFINED      1       10,048         4,860
INTEL CORP                     COMMON  458140100       78     4,180 SH          OTHER       1        3,750           430
INTERNATIONAL BUSINESS MACHS   COMMON  459200101    1,510    12,914 SH         DEFINED      1       12,830            84
INTERNATIONAL BUSINESS MACHS   COMMON  459200101    1,742    14,890 SH          OTHER       1       14,790     100
JACOBS ENGR GROUP INC DEL      COMMON  469814107      849    15,636 SH         DEFINED      1       15,636
JACOBS ENGR GROUP INC DEL      COMMON  469814107       40       730 SH          OTHER       1          730
JOHNSON & JOHNSON              COMMON  478160104    1,425    20,568 SH         DEFINED      1       19,763           805
JOHNSON & JOHNSON              COMMON  478160104      615     8,872 SH          OTHER       1        8,872
JPMORGAN & CHASE & CO          COMMON  46625H100    1,130    24,198 SH         DEFINED      1       22,135         2,063
JPMORGAN & CHASE & CO          COMMON  46625H100      188     4,020 SH          OTHER       1        4,020
KENNAMETAL INC                 COMMON  489170100      492    18,159 SH         DEFINED      1       18,159
KENNAMETAL INC                 COMMON  489170100       12       448 SH          OTHER       1          448
KRAFT FOODS INC                COMMON  50075N104       31       944 SH         DEFINED      1          830           114
KRAFT FOODS INC                COMMON  50075N104      710    21,676 SH          OTHER       1       21,676
L-3 COMMUNICATIONS HLDGS INC   COMMON  502424104      712     7,237 SH         DEFINED      1        7,214            23
L-3 COMMUNICATIONS HLDGS INC   COMMON  502424104       40       410 SH          OTHER       1          410
LOWES COS INC                  COMMON  548661107      225     9,497 SH         DEFINED      1        9,497
LOWES COS INC                  COMMON  548661107       97     4,083 SH          OTHER       1        3,333     750
MANITOWOC INC                  COMMON  563571108      261    16,757 SH         DEFINED      1       16,757
MANITOWOC INC                  COMMON  563571108        5       350 SH          OTHER       1          350
MCDONALDS CORP                 COMMON  580135101    1,219    19,755 SH         DEFINED      1       19,523           232
MCDONALDS CORP                 COMMON  580135101       68     1,100 SH          OTHER       1        1,100
MCKESSON CORP                  COMMON  58155Q103      542    10,077 SH         DEFINED      1       10,077
MCKESSON CORP                  COMMON  58155Q103       21       395 SH          OTHER       1          395
MERCK & CO INC                 COMMON  589331107       75     2,373 SH         DEFINED      1        2,373
MERCK & CO INC                 COMMON  589331107      748    23,710 SH          OTHER       1       23,210     500
MERRILL LYNCH & CO INC         COMMON  590188108      123     4,880 SH         DEFINED      1        1,940         2,940
MERRILL LYNCH & CO INC         COMMON  590188108      109     4,325 SH          OTHER       1        4,325
METLIFE INC                    COMMON  59156R108      603    10,765 SH         DEFINED      1       10,765
METLIFE INC                    COMMON  59156R108        8       140 SH          OTHER       1          140
MICROSOFT CORP                 COMMON  594918104    1,059    39,677 SH         DEFINED      1       37,928         1,749
MICROSOFT CORP                 COMMON  594918104      200     7,478 SH          OTHER       1        7,208           270
MOLSON COORS BREWING CO        COMMON  60871R209      747    15,988 SH         DEFINED      1       15,988
MOLSON COORS BREWING CO        COMMON  60871R209       21       450 SH          OTHER       1          450
MONSANTO CO NEW                COMMON  61166W101      445     4,496 SH         DEFINED      1        4,425            71
MONSANTO CO NEW                COMMON  61166W101       15       151 SH          OTHER       1          151
NATIONAL CITY CORP             COMMON  635405103       22    12,314 SH         DEFINED      1       11,977           337
NEW MEXICO BANQUEST            COMMON  647991926    1,859     7,207 SH         DEFINED      1        7,207
NEW MEXICO BANQUEST            COMMON  647991926       49       189 SH          OTHER       1          189
NORFOLK SOUTHERN CORP          COMMON  655844108      196     2,960 SH         DEFINED      1        2,150           810
NORFOLK SOUTHERN CORP          COMMON  655844108       86     1,300 SH          OTHER       1        1,300
ORACLE CORP                    COMMON  68389X105      915    45,040 SH         DEFINED      1       45,040
ORACLE CORP                    COMMON  68389X105       68     3,358 SH          OTHER       1        3,358
PARKER HANNIFIN CORP           COMMON  701094104      524     9,894 SH         DEFINED      1        9,894
PARKER HANNIFIN CORP           COMMON  701094104       19       350 SH          OTHER       1          350
PARKVALE FINANCIAL CORP        COMMON  701492100    3,593   224,544 SH         DEFINED             224,544      --    --
PEPSICO INC                    COMMON  713448108    1,515    21,257 SH         DEFINED      1       20,574           683
PEPSICO INC                    COMMON  713448108    1,421    19,942 SH          OTHER       1       19,942
PETSMART INC                   COMMON  716768106      854    34,577 SH         DEFINED      1       32,667         1,910
PETSMART INC                   COMMON  716768106       23       950 SH          OTHER       1          950
PFIZER INC                     COMMON  717081103      206    11,193 SH         DEFINED      1        9,995         1,198
PFIZER INC                     COMMON  717081103      398    21,565 SH          OTHER       1       20,925           640
PHARMACEUTICAL PROD DEV INC    COMMON  717124101      784    18,960 SH         DEFINED      1       18,960
PHARMACEUTICAL PROD DEV INC    COMMON  717124101       23       550 SH          OTHER       1          550
PHILIP MORRIS INTL INC         COMMON  718172109      802    16,668 SH         DEFINED      1       16,616            52
PHILIP MORRIS INTL INC         COMMON  718172109    1,440    29,940 SH          OTHER       1       29,940
PNC FINL SVCS GROUP INC        COMMON  693475105      363     4,854 SH         DEFINED      1        4,854
PNC FINL SVCS GROUP INC        COMMON  693475105      299     4,000 SH          OTHER       1        4,000
PPG INDS INC                   COMMON  693506107      107     1,838 SH         DEFINED      1        1,838
PPG INDS INC                   COMMON  693506107    1,117    19,154 SH          OTHER       1       16,654   2,500
PPL CORP                       COMMON  69351T106      233     6,300 SH         DEFINED      1        6,300
PPL CORP                       COMMON  69351T106       98     2,650 SH          OTHER       1        2,650
PRICE T ROWE GROUP INC         COMMON  74144T108      933    17,368 SH         DEFINED      1       16,690           678
PRICE T ROWE GROUP INC         COMMON  74144T108       75     1,390 SH          OTHER       1        1,390
PROCTER & GAMBLE CO            COMMON  742718109    1,631    23,402 SH         DEFINED      1       22,601           801
PROCTER & GAMBLE CO            COMMON  742718109    2,847    40,856 SH          OTHER       1       40,856
PUBLIC SVC ENTERPRISE GROUP    COMMON  744573106      136     4,161 SH         DEFINED      1        1,541         2,620
PUBLIC SVC ENTERPRISE GROUP    COMMON  744573106      277     8,460 SH          OTHER       1        8,460
QUALCOMM INC                   COMMON  747525103      412     9,582 SH         DEFINED      1        9,582
QUALCOMM INC                   COMMON  747525103       12       272 SH          OTHER       1          272
ROCKWELL AUTOMATION INC        COMMON  773903109      173     4,645 SH         DEFINED      1        4,645
ROCKWELL AUTOMATION INC        COMMON  773903109       75     2,000 SH          OTHER       1        2,000
ROCKWELL COLLINS INC           COMMON  774341101      205     4,269 SH         DEFINED      1        4,269
ROCKWELL COLLINS INC           COMMON  774341101       96     2,000 SH          OTHER       1        2,000
ROYAL BANCSHARES OF PENN-A     COMMON  780081105      108    20,156 SH         DEFINED              20,156      --    --






                                                                                  
ROYAL DUTCH SHELL PLC          COMMON  780259206       49       831 SH         DEFINED      1          734            97
ROYAL DUTCH SHELL PLC          COMMON  780259206      266     4,500 SH          OTHER       1        4,500
S & T BANCORP INC              COMMON  783859101    2,763    75,016 SH         DEFINED      1       75,016
S & T BANCORP INC              COMMON  783859101       54     1,464 SH          OTHER       1        1,464
SCHLUMBERGER LTD               COMMON  806857108      753     9,640 SH         DEFINED      1        9,525           115
SCHLUMBERGER LTD               COMMON  806857108      251     3,218 SH          OTHER       1        3,218
STATE STR CORP                 COMMON  857477103      565     9,941 SH         DEFINED      1        9,941
STATE STR CORP                 COMMON  857477103       12       214 SH          OTHER       1          214
SUPERVALU INC                  COMMON  868536103      396    18,261 SH         DEFINED      1       18,261
SUPERVALU INC                  COMMON  868536103        9       400 SH          OTHER       1          400
SUSQUEHANNA BANCSHARES INC     COMMON  869099101    1,356    69,487 SH         DEFINED              69,487      --    --
SUSQUEHANNA BANCSHARES INC P   COMMON  869099101    1,020    52,242 SH         DEFINED      1       52,242
TARGET CORP                    COMMON  87612E106      830    16,925 SH         DEFINED      1       16,925
TARGET CORP                    COMMON  87612E106      242     4,938 SH          OTHER       1        4,938
TEXAS INSTRS INC               COMMON  882508104      196     9,136 SH         DEFINED      1        7,066         2,070
TEXAS INSTRS INC               COMMON  882508104       49     2,267 SH          OTHER       1        2,267
THERMO FISHER SCIENTIFIC INC   COMMON  883556102      920    16,724 SH         DEFINED      1       16,724
THERMO FISHER SCIENTIFIC INC   COMMON  883556102       27       485 SH          OTHER       1          485
TIDEWATER INC                  COMMON  886423102      384     6,933 SH         DEFINED      1        6,933
TIDEWATER INC                  COMMON  886423102       15       275 SH          OTHER       1          275
TIME WARNER CABLE INC          COMMON  88732J108      368    15,205 SH         DEFINED      1       15,205
TIME WARNER CABLE INC          COMMON  88732J108       19       768 SH          OTHER       1          768
TRISTATE CAPITAL BANK          COMMON  99R733108      500    50,000 SH         DEFINED              50,000      --    --
UNITED TECHNOLOGIES CORP       COMMON  913017109      249     4,150 SH         DEFINED      1        3,508           642
UNITED TECHNOLOGIES CORP       COMMON  913017109       32       533 SH          OTHER       1          533
US BANCORP DEL                 COMMON  902973304      616    17,098 SH         DEFINED      1       14,680         2,418
US BANCORP DEL                 COMMON  902973304       11       312 SH          OTHER       1          312
VALERO ENERGY CORP NEW         COMMON  91913Y100      421    13,898 SH         DEFINED      1       13,898
VALERO ENERGY CORP NEW         COMMON  91913Y100       17       570 SH          OTHER       1          570
VERIZON COMMUNICATIONS INC     COMMON  92343V104    1,474    45,936 SH         DEFINED      1       45,853            83
VERIZON COMMUNICATIONS INC     COMMON  92343V104      753    23,470 SH          OTHER       1       19,926   3,544
VIST FINANCIAL CORP            COMMON  524477106    1,140    95,005 SH         DEFINED              95,005      --    --
WACHOVIA CORP NEW              COMMON  929903102       38    10,994 SH         DEFINED      1       10,994
WACHOVIA CORP NEW              COMMON  929903102        1       200 SH          OTHER       1          200
WELLS FARGO & CO NEW           COMMON  949746101    1,220    32,510 SH         DEFINED      1       30,940         1,570
WELLS FARGO & CO NEW           COMMON  949746101      245     6,532 SH          OTHER       1        6,532
XCEL ENERGY INC                COMMON  98389B100      506    25,328 SH         DEFINED      1       25,328
XCEL ENERGY INC                COMMON  98389B100       35     1,770 SH          OTHER       1        1,770
ZIMMER HLDGS INC               COMMON  98956P102      350     5,417 SH         DEFINED      1        4,957           460
ZIMMER HLDGS INC               COMMON  98956P102       25       380 SH          OTHER       1          250           130

GRAND TOTALS                                      114,850 3,818,934