UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F FORM 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2013 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 Guardian Capital Advisors LP Address CCW, Suite 3100, 199 Bay Street PO Box 201 Toronto, Ontario Canada M5L 1E8 Form 13F File Number: 028-14315 The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing this report is authorized to submit it, that all information contained herein is true, correct and complete, and that 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 Matthew D. Turner Title Chief Compliance Officer Phone 416-947-3708 Signature, Place, and Date of Signing: By /s/ Matthew D. Turner Toronto, Ontario CANADA May 13, 2013 ------------------------ ----------------------- ------------ [Signature] [City, State] [Date] 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: 0 Form 13F Information Table Entry Total: 164 Form 13F Information Table Value Total: 423,956 (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. NONE FORM 13F INFORMATION TABLE COL 1 COL 2 COL 3 COL 4 COL 5 COL 6 COL 7 COL 8 US $ SHARES VALUE OR SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE ------------------------------ ---------------- --------- -------- --------- --- ---- ------- ---------- --------- -------- -------- 3M CO COM 88579Y101 4905 44760 SH SOLE 44760 0 0 ABB LTD SPONSORED ADR 000375204 3828 162914 SH SOLE 162914 0 0 ABBOTT LABS COM 002824100 2424 65175 SH SOLE 65175 0 0 ABBVIE INC COM 00287Y109 2575 61425 SH SOLE 61425 0 0 AEGON N V NY REGISTRY SH 007924103 1411 221586 SH SOLE 221586 0 0 AETNA INC NEW COM 00817Y108 352 6300 SH SOLE 6300 0 0 AGRIUM INC COM 008916108 2883 29414 SH SOLE 29414 0 0 ALCOA INC COM 013817101 149 17416 SH SOLE 17416 0 0 ALTRIA GROUP INC COM 02209S103 455 12700 SH SOLE 12700 0 0 AMERICAN ELEC PWR INC COM 025537101 3233 64970 SH SOLE 64970 0 0 AMERICAN EXPRESS CO COM 025816109 543 7785 SH SOLE 7785 0 0 AMERICAN INTL GROUP INC COM NEW 026874784 417 10400 SH SOLE 10400 0 0 APPLE INC COM 037833100 2171 4904 SH SOLE 4904 0 0 ARCELORMITTAL SA LUXEMBOURG NY REGISTRY SH 03938L104 1256 99560 SH SOLE 99560 0 0 ASTRAZENECA PLC SPONSORED ADR 046353108 2399 46290 SH SOLE 46290 0 0 AT&T INC COM 00206R102 5389 139391 SH SOLE 139391 0 0 ATLANTIC PWR CORP COM NEW 04878Q863 860 166961 SH SOLE 166961 0 0 AVALON RARE METALS INC COM 053470100 111 103000 SH SOLE 103000 0 0 BANCO SANTANDER SA ADR 05964H105 2924 411229 SH SOLE 411229 0 0 BANK MONTREAL QUE COM 063671101 14843 227197 SH SOLE 227197 0 0 BANK NOVA SCOTIA HALIFAX COM 064149107 18171 302823 SH SOLE 302823 0 0 BARRICK GOLD CORP COM 067901108 702 24061 SH SOLE 24061 0 0 BAYTEX ENERGY CORP COM 07317Q105 1924 44575 SH SOLE 44575 0 0 BCE INC COM NEW 05534B760 16005 334369 SH SOLE 334369 0 0 BHP BILLITON LTD SPONSORED ADR 088606108 2280 32412 SH SOLE 32412 0 0 BLACKROCK INC COM 09247X101 1184 4465 SH SOLE 4465 0 0 BOEING CO COM 097023105 498 5750 SH SOLE 5750 0 0 BRIGUS GOLD CORP COM 109490102 8 10000 SH SOLE 10000 0 0 BRISTOL MYERS SQUIBB CO COM 110122108 777 18250 SH SOLE 18250 0 0 BRITISH AMERN TOB PLC SPONSORED ADR 110448107 2420 21690 SH SOLE 21690 0 0 BROOKFIELD ASSET MGMT INC CL A LTD VT SH 112585104 5991 157983 SH SOLE 157983 0 0 BROOKFIELD INFRAST PARTNERS LP INT UNIT G16252101 1162 29675 SH SOLE 29675 0 0 BROOKFIELD OFFICE PPTYS INC COM 112900105 903 51400 SH SOLE 51400 0 0 CANADIAN NAT RES LTD COM 136385101 5786 174775 SH SOLE 174775 0 0 CANADIAN NATL RY CO COM 136375102 7934 77789 SH SOLE 77789 0 0 CAPITAL ONE FINL CORP COM 14040H105 255 4535 SH SOLE 4535 0 0 CATERPILLAR INC DEL COM 149123101 2431 27795 SH SOLE 27795 0 0 CDN IMPERIAL BK OF COMMERCE COM 136069101 12132 148300 SH SOLE 148300 0 0 CELESTICA INC SUB VTG SHS 15101Q108 418 50529 SH SOLE 50529 0 0 CENOVUS ENERGY INC COM 15135U109 4382 135464 SH SOLE 135464 0 0 CF INDS HLDGS INC COM 125269100 502 2625 SH SOLE 2625 0 0 CHEVRON CORP NEW COM 166764100 4465 36441 SH SOLE 36441 0 0 CHINA MOBILE LIMITED SPONSORED ADR 16941M109 344 6250 SH SOLE 6250 0 0 CISCO SYS INC COM 17275R102 671 30700 SH SOLE 30700 0 0 CNH GLOBAL N V SHS NEW N20935206 403 9550 SH SOLE 9550 0 0 COMCAST CORP NEW CL A 20030N101 320 7375 SH SOLE 7375 0 0 CONOCOPHILLIPS COM 20825C104 5006 81016 SH SOLE 81016 0 0 CORNING INC COM 219350105 829 60425 SH SOLE 60425 0 0 CREDIT SUISSE GROUP SPONSORED ADR 225401108 1313 47720 SH SOLE 47720 0 0 CUMMINS INC COM 231021106 466 4050 SH SOLE 4050 0 0 CVS CAREMARK CORPORATION COM 126650100 2884 50725 SH SOLE 50725 0 0 DEERE & CO COM 244199105 443 5135 SH SOLE 5135 0 0 DEUTSCHE BANK AG NAMEN AKT D18190898 1075 26175 SH SOLE 26175 0 0 DOW CHEM CO COM 260543103 456 14300 SH SOLE 14300 0 0 DTE ENERGY CO COM 233331107 254 3600 SH SOLE 3600 0 0 DU PONT E I DE NEMOURS & CO COM 263534109 884 17514 SH SOLE 17514 0 0 DUKE ENERGY CORP NEW COM NEW 26441C204 6939 92842 SH SOLE 92842 0 0 EATON CORP PLC SHS G29183103 448 7135 SH SOLE 7135 0 0 EMERSON ELEC CO COM 291011104 2993 53035 SH SOLE 53035 0 0 ENBRIDGE INC COM 29250N105 8960 184612 SH SOLE 184612 0 0 ENCANA CORP COM 292505104 2830 143246 SH SOLE 143246 0 0 ENERPLUS CORP COM 292766102 642 42725 SH SOLE 42725 0 0 ETABLISSEMENTS DELHAIZE FRER SPONSORED ADR 29759W101 2015 35545 SH SOLE 35545 0 0 FIRSTSERVICE CORP SDCV 6.500%12/ 33761NAA7 19 15000 SH SOLE 15000 0 0 FORD MTR CO DEL COM PAR $0.01 345370860 712 53172 SH SOLE 53172 0 0 FRANCE TELECOM SPONSORED ADR 35177Q105 1103 104975 SH SOLE 104975 0 0 FRANKLIN RES INC COM 354613101 1025 6605 SH SOLE 6605 0 0 FREEPORT-MCMORAN COPPER & GO COM 35671D857 2830 86079 SH SOLE 86079 0 0 GENERAL ELECTRIC CO COM 369604103 381 16000 SH SOLE 16000 0 0 GENERAL GROWTH PPTYS INC NEW COM 370023103 332 16000 SH SOLE 16000 0 0 GLAXOSMITHKLINE PLC SPONSORED ADR 37733W105 2864 59233 SH SOLE 59233 0 0 GOLDCORP INC NEW COM 380956409 571 17123 SH SOLE 17123 0 0 GOODYEAR TIRE & RUBR CO COM 382550101 591 46950 SH SOLE 46950 0 0 GOOGLE INC CL A 38259P508 925 1105 SH SOLE 1105 0 0 GROUPE CGI INC CL A SUB VTG 39945C109 3624 133897 SH SOLE 133897 0 0 HARTFORD FINL SVCS GROUP INC COM 416515104 425 16150 SH SOLE 16150 0 0 HECLA MNG CO COM 422704106 80 20700 SH SOLE 20700 0 0 HOME DEPOT INC COM 437076102 828 11325 SH SOLE 11325 0 0 HSBC HLDGS PLC SPON ADR NEW 404280406 1216 21975 SH SOLE 21975 0 0 IAMGOLD CORP COM 450913108 684 97875 SH SOLE 97875 0 0 IMAX CORP COM 45245E109 408 15000 SH SOLE 15000 0 0 IMPERIAL OIL LTD COM NEW 453038408 1951 46434 SH SOLE 46434 0 0 INTEL CORP COM 458140100 3892 176184 SH SOLE 176184 0 0 INTERNATIONAL BUSINESS MACHS COM 459200101 3998 18172 SH SOLE 18172 0 0 INTL PAPER CO COM 460146103 234 4720 SH SOLE 4720 0 0 ISHARES TR MSCI EAFE INDEX 464287465 293 4866 SH SOLE 4866 0 0 ISHARES TR HIGH YLD CORP 464288513 885 9200 SH SOLE 9200 0 0 ISHARES TR S&P GBL FIN 464287333 517 10500 SH SOLE 10500 0 0 ISHARES TR FTSE CHINA25 IDX 464287184 480 12810 SH SOLE 12810 0 0 ISHARES TR S&P500 GRW 464287309 624 7350 SH SOLE 7350 0 0 JOHNSON & JOHNSON COM 478160104 5979 70315 SH SOLE 70315 0 0 JOHNSON CTLS INC COM 478366107 2902 82405 SH SOLE 82405 0 0 JPMORGAN CHASE & CO COM 46625H100 5748 115762 SH SOLE 115762 0 0 KINROSS GOLD CORP COM NO PAR 496902404 87 11301 SH SOLE 11301 0 0 LENNAR CORP CL A 526057104 1023 24825 SH SOLE 24825 0 0 LILLY ELI & CO COM 532457108 1493 25675 SH SOLE 25675 0 0 MAGNA INTL INC COM 559222401 1460 24125 SH SOLE 24125 0 0 MANULIFE FINL CORP COM 56501R106 1284 83956 SH SOLE 83956 0 0 MCDONALDS CORP COM 580135101 3708 35915 SH SOLE 35915 0 0 MCKESSON CORP COM 58155Q103 326 2925 SH SOLE 2925 0 0 MERCK & CO INC NEW COM 58933Y105 296 6425 SH SOLE 6425 0 0 METLIFE INC COM 59156R108 487 12395 SH SOLE 12395 0 0 MICROSOFT CORP COM 594918104 4454 150176 SH SOLE 150176 0 0 MORGAN STANLEY COM NEW 617446448 765 34190 SH SOLE 34190 0 0 MOSAIC CO NEW COM 61945C103 386 6450 SH SOLE 6450 0 0 NATIONAL GRID PLC SPON ADR NEW 636274300 6442 106385 SH SOLE 106385 0 0 NEWMONT MINING CORP COM 651639106 405 9885 SH SOLE 9885 0 0 NIKE INC CL B 654106103 1702 28035 SH SOLE 28035 0 0 NOVARTIS A G SPONSORED ADR 66987V109 1674 22790 SH SOLE 22790 0 0 ORACLE CORP COM 68389X105 3332 98817 SH SOLE 98817 0 0 PEMBINA PIPELINE CORP COM 706327103 1570 48473 SH SOLE 48473 0 0 PENGROWTH ENERGY CORP COM 70706P104 448 85644 SH SOLE 85644 0 0 PENN WEST PETE LTD NEW COM 707887105 244 22656 SH SOLE 22656 0 0 PEPSICO INC COM 713448108 5610 68340 SH SOLE 68340 0 0 PFIZER INC COM 717081103 3775 125428 SH SOLE 125428 0 0 PHILIP MORRIS INTL INC COM 718172109 1759 18200 SH SOLE 18200 0 0 POTASH CORP SASK INC COM 73755L107 2343 57818 SH SOLE 57818 0 0 PRECISION DRILLING CORP COM 2010 74022D308 2646 284764 SH SOLE 284764 0 0 PROCTER & GAMBLE CO COM 742718109 277 3438 SH SOLE 3438 0 0 PROGRESSIVE WASTE SOLUTIONS COM 74339G101 1793 83665 SH SOLE 83665 0 0 QUALCOMM INC COM 747525103 2686 39395 SH SOLE 39395 0 0 RESEARCH IN MOTION LTD COM 760975102 210 13465 SH SOLE 13465 0 0 RIO TINTO PLC SPONSORED ADR 767204100 477 10040 SH SOLE 10040 0 0 ROGERS COMMUNICATIONS INC CL B 775109200 5702 109036 SH SOLE 109036 0 0 ROYAL BK CDA MONTREAL QUE COM 780087102 21797 345022 SH SOLE 345022 0 0 ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 4223 63070 SH SOLE 63070 0 0 SANOFI SPONSORED ADR 80105N105 4875 91184 SH SOLE 91184 0 0 SAP AG SPON ADR 803054204 1310 15730 SH SOLE 15730 0 0 SCHLUMBERGER LTD COM 806857108 212 2750 SH SOLE 2750 0 0 SHAW COMMUNICATIONS INC CL B CONV 82028K200 367 14400 SH SOLE 14400 0 0 SIEMENS A G SPONSORED ADR 826197501 2876 25430 SH SOLE 25430 0 0 SPDR S&P 500 ETF TR TR UNIT 78462F103 3087 19129 SH SOLE 19129 0 0 SUN LIFE FINL INC COM 866796105 7300 256360 SH SOLE 256360 0 0 SUNCOR ENERGY INC NEW COM 867224107 5264 166191 SH SOLE 166191 0 0 SWISS HELVETIA FD INC COM 870875101 176 14091 SH SOLE 14091 0 0 TAIWAN SEMICONDUCTOR MFG LTD SPONSORED ADR 874039100 2821 160154 SH SOLE 160154 0 0 TALISMAN ENERGY INC COM 87425E103 337 26705 SH SOLE 26705 0 0 TASEKO MINES LTD COM 876511106 29 10700 SH SOLE 10700 0 0 TECK RESOURCES LTD CL B 878742204 4716 166903 SH SOLE 166903 0 0 TELUS CORP COM 87971M103 5094 71542 SH SOLE 71542 0 0 TEMPLETON RUS AND EAST EUR F COM 88022F105 173 11500 SH SOLE 11500 0 0 TEVA PHARMACEUTICAL INDS LTD ADR 881624209 1339 32935 SH SOLE 32935 0 0 THOMSON REUTERS CORP COM 884903105 2899 86920 SH SOLE 86920 0 0 TIM HORTONS INC COM 88706M103 471 8480 SH SOLE 8480 0 0 TORONTO DOMINION BK ONT COM NEW 891160509 23078 269081 SH SOLE 269081 0 0 TOTAL S A SPONSORED ADR 89151E109 262 5200 SH SOLE 5200 0 0 TRANSALTA CORP COM 89346D107 1001 66177 SH SOLE 66177 0 0 TRANSCANADA CORP COM 89353D107 9895 196249 SH SOLE 196249 0 0 TRAVELERS COMPANIES INC COM 89417E109 3221 37097 SH SOLE 37097 0 0 UNILEVER N V N Y SHS NEW 904784709 3622 84645 SH SOLE 84645 0 0 UNILEVER PLC SPON ADR NEW 904767704 1626 37030 SH SOLE 37030 0 0 UNION PAC CORP COM 907818108 290 2000 SH SOLE 2000 0 0 UNITEDHEALTH GROUP INC COM 91324P102 1563 24570 SH SOLE 24570 0 0 V F CORP COM 918204108 259 1500 SH SOLE 1500 0 0 VALE S A ADR 91912E105 450 26375 SH SOLE 26375 0 0 VANGUARD INDEX FDS REIT ETF 922908553 216 3000 SH SOLE 3000 0 0 VANGUARD INTL EQUITY INDEX F FTSE EMR MKT ETF 922042858 1468 33500 SH SOLE 33500 0 0 VERIZON COMMUNICATIONS INC COM 92343V104 2788 54928 SH SOLE 54928 0 0 VERMILION ENERGY INC COM 923725105 1365 25538 SH SOLE 25538 0 0 VODAFONE GROUP PLC NEW SPONS ADR NEW 92857W209 4115 135887 SH SOLE 135887 0 0 WAL-MART STORES INC COM 931142103 2663 34035 SH SOLE 34035 0 0 WELLPOINT INC COM 94973V107 1742 24705 SH SOLE 24705 0 0 WELLS FARGO & CO NEW COM 949746101 5664 149357 SH SOLE 149357 0 0 WHOLE FOODS MKT INC COM 966837106 684 7850 SH SOLE 7850 0 0