Canadian federal elections have provided the following results in Eastern Ontario.
This mostly rural region has historically split between the Conservatives and Liberals, though vote-splitting led to a Liberal sweep in 1993 and 1997. The merge of the former Canadian Alliance and Progressive Conservative parties, however, saw the region swing rightward in the new millennium. Conservative parties gradually increased their seat numbers from 2004 onward, and by 2006 only the University City and largest urban area seat of Kingston and the Islands remained in Liberal hands.
In the 2011 election, the region was affected by the nationwide surge in support for the NDP. Although the NDP failed to win any seats in the area, they increased their popular vote share in all seven of the region's ridings, and won second place in three of the area's ridings.
The Liberal wave that swept through Ontario in 2015 saw the Liberals take four seats in eastern Ontario, mostly in more urbanized areas (Kingston, Belleville, Hawkesbury). The Conservatives won the other four.
The 2019 election saw the Conservatives regain Hastings—Lennox and Addington, with the other seats remaining unchanged, resulting in the Conservatives winning five seats to the Liberals three.
| Election | / | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1979 | 128,691 39.2% | 49,161 15.0% | 149,774 45.6% | 785 0.2% | |||||||||||
| 1980 | 138,038 44.1% | 47,772 15.3% | 125,705 40.2% | 890 0.3% | |||||||||||
| 1984 | 123,295 35.4% | 46,852 13.4% | 826 0.2% | 175,060 50.2% | 2,635 0.8% | ||||||||||
| 1988 | 180,011 46.3% | 54,825 14.1% | 136,666 35.2% | 8,433 2.2% | |||||||||||
| 1993 | 242,072 57.3% | 13,860 3.3% | 871 0.2% | 79,597 18.8% | 65,421 15.5% | 20,508 4.9% | |||||||||
| 1997 | 191,132 48.6% | 25,181 6.4% | 2,884 0.7% | 88,879 22.6% | 81,845 20.8% | 3,225 0.8% | |||||||||
| 2000 | 173,608 45.8% | 17,164 4.5% | 4,855 1.3% | 60,770 16.0% | 119,464 31.5% | 2,112 0.6% | |||||||||
| 2004 | 139,558 38.3% | 156,649 43.0% | 45,666 12.5% | 18,243 5.0% | 2,749 0.8% | ||||||||||
| 2006 | 123,177 31.6% | 183,758 47.2% | 58,419 15.0% | 19,322 5.0% | 3,330 0.9% | ||||||||||
| 2008 | 94,954 26.5% | 183,114 51.2% | 47,897 13.4% | 27,801 7.8% | 3,255 0.9% | ||||||||||
| 2011 | 84,611 22.3% | 199,170 52.4% | 72,036 18.9% | 13,574 3.6% | 10,609 2.8% | ||||||||||
| 2015 | 202,326 43.9% | 186,378 40.4% | 51,641 11.2% | 13,239 2.9% | 7,772 1.7% | ||||||||||
| 2019 | 162,540 33.7% | 200,345 41.6% | 72,806 15.1% | 32,449 6.7% | 10,193 2.1% | 3,009 0.6% | |||||||||
| 2021 | 155,014 32.1% | 207,061 42.9% | 78,859 16.3% | 11,483 2.4% | 28,562 5.9% | 1,525 0.3% |
See main article: 2019 Canadian federal election.
See main article: 2015 Canadian federal election.
See main article: 2011 Canadian federal election.
See main article: 2008 Canadian federal election.
See main article: 2006 Canadian federal election.
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See main article: 2004 Canadian federal election.
See main article: 2000 Canadian federal election.
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See main article: 1997 Canadian federal election.
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See main article: 1993 Canadian federal election.
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See main article: 1988 Canadian federal election.
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See main article: 1984 Canadian federal election.
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See main article: 1980 Canadian federal election.
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See main article: 1979 Canadian federal election.
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See main article: 1974 Canadian federal election.
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See main article: 1972 Canadian federal election.
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See main article: 1968 Canadian federal election.
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See main article: 1965 Canadian federal election.
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See main article: 1963 Canadian federal election.
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See main article: 1962 Canadian federal election.
See main article: 1958 Canadian federal election.
See main article: 1957 Canadian federal election. |-| style="background-color:whitesmoke" |Carleton||Frank Egan Dunlap
15,298|||Dick Bell
27,865||Stewart Crawford
1,334||Eric Kingsley Fallis
607|||||Vacant|-| style="background-color:whitesmoke" |Glengarry—Prescott||Raymond Bruneau
6,661|||Osie Villeneuve
8,241||||Patrice Brunet
198||René Bertrand (I. Lib)
5,414|||Raymond Bruneau|-| style="background-color:whitesmoke" |Grenville—Dundas||Arthur Clark Casselman
4,402|||Arza Clair Casselman
8,967| | ||R. H. James
1,072|||||Azra Clair Casselman|-| style="background-color:whitesmoke" |Lanark||W. Peter Burchell
4,504|||William Gourlay Blair
11,629|| |||||||William Gourlay Blair|-| style="background-color:whitesmoke" |Leeds||George Taylor Fulford
10,125|||Hayden Stanton
11,065|| ||Charles William Shaw
395|||||Hayden Stanton|-| style="background-color:whitesmoke" |Ottawa East|||Jean-Thomas Richard
18,216||Eleanor Blackburn
5,947||William A. Layman
620||Raymond Berthiaume
843|||||Jean-Thomas Richard|-| style="background-color:whitesmoke" |Ottawa West|||George McIlraith
19,434||Ethel T. Shaw
12,538||David Williams
1,062||Laurence M. Maloney
881|| |||George McIlraith|-| style="background-color:whitesmoke" |Russell|||Joseph-Omer Gour
20,673||Wib Nixon
12,271||Harry Jacks
1,420||Eddie Parisien
1,161|||||Joseph-Omer Gour|-| style="background-color:whitesmoke" |Stormont|||Albert Lavigne
12,505||Grant Campbell
10,215||||Mel Rowat
646|||||Albert Lavigne|-|}