Template:2004 Canadian federal election/on-o

Electoral district	Candidates														Incumbent
	Liberal		Conservative		NDP		Green		Marijuana		Marxist-Leninist		Other
Carleton—Lanark		Dan Wicklum 22,185 33.99%		Gordon O'Connor 32,664 50.04%		Rick Prashaw 6,758 10.35%		Stuart Langstaff 3,665 5.61%							new district
Nepean—Carleton		David Pratt 26,684 40.05%		Pierre Poilievre 30,420 45.66%		Phil Brown 6,072 9.11%		Chris Walker 2,886 4.33%		Brad Powers 561 0.84%						David Pratt
Ottawa Centre		Richard Mahoney 19,478 31.07%		Mike Murphy 11,933 19.04%		Ed Broadbent 25,734 41.05%		David Chernushenko 4,730 7.55%		Michael Foster 455 0.73%		Louis Lang 67 0.11%		Carla Marie Dancey (CAP) 76 0.12%		vacant1
														Robert G. Gauthier (Ind.) 121 0.19%
														Stuart Ryan (Comm.) 90 0.14%
Ottawa—Orléans		Marc Godbout 26,383 44.99%		Walter Robinson 23,655 40.34%		Crystal Leblanc 5,905 10.07%		Dan Biocchi 2,699 4.60%								Eugène Bellemare†
Ottawa South		David McGuinty 25,956 43.82%		Alan Riddell 20,622 34.82%		Monia Mazigh 8,080 13.64%		John Ford 3,398 5.74%		John Akpata 495 0.84%		Saroj Bains 79 0.13%		Raymond Aubin (Ind.) 225 0.38%		John Paul Manley†
														Brad Thomson (PC) 375 0.63%
Ottawa—Vanier		Mauril Bélanger 25,952 49.17%		Kevin Friday 12,769 24.19%		Ric Dagenais 9,787 18.54%		Raphaël Thierrin 3,628 6.87%		Carol Taylor 558 1.06%		Françoise Roy 85 0.16%				Mauril Bélanger
Ottawa West—Nepean		Marlene Catterall 23,971 41.78%		Sean Casey 22,591 39.37%		Marlene Rivier 7,449 12.98%		Neil Adair 2,748 4.79%		Russell Barth 430 0.75%		Alexandre Legeais 68 0.12%		Mary-Sue Haliburton (CAP) 121 0.21%		Marlene Catterall

¹ Previously held by Liberal Mac Harb