# List of Ontario senators

This is a list of past and present members of the Senate of Canada representing the province of Ontario. Ontario has had an allocation of 24 senators since the time of Confederation. The province is also one of four regional Senate divisions under Section 26 of the Constitution Act that allows for the expansion of the Senate by one or two senators per region.

## Current senators

| Name | Senate political affiliation | Province (Division) | Date appointed | Appointed on the advice of | Retirement date |
| Salma Ataullahjan | Conservative | Ontario | July 9, 2010 | Harper | April 29, 2027 |
| Robert Black | Canadian Senators Group | Ontario | February 15, 2018 | Trudeau, J. | March 27, 2037 |
| Peter M. Boehm | Independent Senators Group | Ontario | October 3, 2018 | Trudeau, J. | April 26, 2029 |
| Gwen Boniface | Independent Senators Group | Ontario | November 10, 2016 | Trudeau, J. | August 5, 2030 |
| Yvonne Boyer | Independent Senators Group | Ottawa | March 15, 2018 | Trudeau, J. | October 25, 2028 |
| Sharon Burey | Canadian Senators Group | Ontario | November 21, 2022 | Trudeau, J. | December 4, 2032 |
| Andrew Cardozo | Progressive Senate Group | Ontario | November 21, 2022 | Trudeau, J. | March 21, 2031 |
| Bernadette Clement | Independent Senators Group | Ontario | June 22, 2021 | Trudeau, J. | May 17, 2040 |
| Donna Dasko | Independent Senators Group | Ontario | June 6, 2018 | Trudeau, J. | August 19, 2026 |
| Marty Deacon | Independent Senators Group | Ontario | February 15, 2018 | Trudeau, J. | April 23, 2033 |
| Tony Dean | Independent Senators Group | Ontario | November 10, 2016 | Trudeau, J. | August 26, 2028 |
| Peter Harder | Progressive Senate Group | Ottawa | March 23, 2016 | Trudeau, J. | August 25, 2027 |
| Lucie Moncion | Independent Senators Group | Ontario | November 10, 2016 | Trudeau, J. | October 25, 2033 |
| Marnie McBean | Independent Senators Group | Ontario | December 20, 2023 | Trudeau, J. | January 28, 2043 |
| Rosemary Moodie | Independent Senators Group | Ontario | December 12, 2018 | Trudeau, J. | November 24, 2031 |
| Ratna Omidvar | Independent Senators Group | Ontario | April 1, 2016 | Trudeau, J. | November 5, 2024 |
| Kim Pate | Independent Senators Group | Ontario | November 10, 2016 | Trudeau, J. | November 10, 2034 |
| Rebecca Patterson | Canadian Senators Group | Ontario | November 21, 2022 | Trudeau, J. | June 15, 2040 |
| Paulette Senior | Non-affiliated | Ontario | December 20, 2023 | Trudeau, J. | December 4, 2036 |
| Toni Varone | Independent Senators Group | Ontario | December 20, 2023 | Trudeau, J. | June 20, 2033 |
| Hassan Yussuff | Independent Senators Group | Ontario | June 22, 2021 | Trudeau, J. | December 15, 2032 |
| Mohammad Al Zaibak | Independent Senators Group | Ontario | January 28, 2024 | Trudeau, J. | August 9, 2026 |

## Historical

| Name | Party | Division | Date appointed | Appointed on the advice of | End of term |
| James Cox Aikins | Liberal-Conservative | Ontario | October 23, 1867 | Royal Proclamation | May 30, 1882 |
| James Cox Aikins | Liberal-Conservative | Ontario | January 7, 1896 | Bowell | August 6, 1904 |
| John Black Aird | Liberal | Toronto | November 10, 1964 | Pearson | November 28, 1974 |
| George Alexander | Conservative | Woodstock | May 30, 1873 | MacDonald | May 29, 1891 |
| George Allan | Liberal-Conservative | York | October 23, 1867 | Royal Proclamation | July 24, 1901 |
| James Arthurs | Conservative | Ontario | July 20, 1935 | Bennett | October 7, 1937 |
| Norman Atkins | Progressive Conservative | Markham | July 2, 1986 | Mulroney | June 27, 2009 |
| Allen Bristol Aylesworth | Liberal | North York | January 11, 1923 | King | February 13, 1952 |
| Robert Beith | Liberal | Bowmanville | January 15, 1907 | Laurier | January 26, 1922 |
| Napoléon Belcourt | Liberal | Ottawa | November 22, 1907 | Laurier | August 7, 1932 |
| Rhéal Bélisle | Progressive Conservative | Sudbury | February 4, 1963 | Diefenbaker | November 3, 1992 |
| John Joseph Bench | Liberal | Lincoln | November 19, 1942 | King | December 9, 1947 |
| William Moore Benidickson | Liberal | Kenora-Rainy River | July 7, 1965 | Pearson | April 1, 1985 |
| William Bennett | Conservative | Simcoe East | November 13, 1917 | Borden | March 15, 1925 |
| James Rea Benson | Liberal-Conservative | St. Catharines | March 14, 1868 | Macdonald | March 18, 1885 |
| Lynn Beyak | Conservative | Ontario | January 25, 2013 | Harper | January 25, 2021 |
| Florence Bird | Liberal | Carleton | March 23, 1978 | Trudeau, P.E. | January 15, 1983 |
| Charles Lawrence Bishop | Liberal | Ottawa | April 18, 1945 | King | September 23, 1966 |
| Richard Blain | Conservative | Peel | July 26, 1917 | Borden | November 27, 1926 |
| Adam Fergusson Blair | Liberal | Ontario | October 23, 1867 | Royal Proclamation | December 29, 1867 |
| Oliver Blake | Liberal | Ontario | October 23, 1867 | Royal Proclamation | December 10, 1873 |
| Peter Bosa | Liberal | York-Caboto | April 5, 1977 | Trudeau, P. E. | December 10, 1998 |
| Mackenzie Bowell | Conservative | Hastings | December 5, 1892 | Thompson | December 10, 1917 |
| Joseph-Arthur Bradette | Liberal | Cochrane | June 12, 1953 | St. Laurent | September 12, 1961 |
| David Braley | Conservative | Ontario | May 20, 2010 | Harper | November 30, 2013 |
| William Henry Brouse | Independent Reformer | Prescott | August 9, 1878 | Mackenzie | August 23, 1881 |
| George Brown | Liberal | Lambton | December 16, 1873 | Mackenzie | May 9, 1880 |
| William Brunt | Progressive Conservative | Hanover | October 12, 1957 | Diefenbaker | July 7, 1962 |
| Harcourt Burland Bull | Conservative | Hamilton | February 24, 1879 | Macdonald | August 12, 1881 |
| Asa Allworth Burnham | Conservative | Ontario | October 23, 1867 | Royal Proclamation | May 10, 1873 |
| Alexander Campbell | Conservative | Cataraqui | October 23, 1867 | Royal Proclamation | February 7, 1887 |
| Archibald Campbell | Liberal | Toronto West | November 22, 1907 | Laurier | January 15, 1913 |
| Gordon Peter Campbell | Liberal | Toronto | February 19, 1943 | King | January 16, 1964 |
| John Carling | Liberal-Conservative | London | April 27, 1891 April 23, 1896 | Macdonald Bowell | February 17, 1892 November 6, 1911 |
| Richard John Cartwright | Liberal | Oxford | September 20, 1904 | Laurier | September 24, 1912 |
| Charles Eusèbe Casgrain | Conservative | Windsor | January 12, 1887 | Macdonald | March 8, 1907 |
| Marie Charette-Poulin | Liberal | Northern Ontario | September 22, 1995 | Chrétien | April 17, 2015 |
| Lionel Choquette | Progressive Conservative | Ottawa East | January 31, 1958 | Diefenbaker | March 6, 1981 |
| David Christie | Liberal | Erie | October 23, 1867 | Royal Proclamation | December 15, 1880 |
| Francis Clemow | Conservative | Rideau | February 3, 1885 | Macdonald | May 28, 1902 |
| Thomas Coffey | Liberal | London | March 12, 1903 | Laurier | June 8, 1914 |
| John Joseph Connolly | Liberal | Ottawa West | June 12, 1953 | St. Laurent | October 31, 1981 |
| Anne Cools | Independent Senators Group | Toronto Centre Toronto Centre-York | January 13, 1984 | Trudeau, P. E. | August 12, 2018 |
| Henry Corby | Conservative | Belleville | October 17, 1912 | Borden | April 23, 1917 |
| Louis Côté | Conservative | Ottawa East | December 30, 1933 | Bennett | February 2, 1943 |
| George Albertus Cox | Liberal | Saugeen | November 13, 1896 | Laurier | January 16, 1914 |
| George Crawford | Conservative | Ontario | October 23, 1867 | Royal Proclamation | July 4, 1870 |
| David Croll | Liberal | Toronto-Spadina | July 28, 1955 | St. Laurent | June 11, 1991 |
| Thomas Wilson Crothers | Conservative | Ontario | October 3, 1921 | Meighen | December 10, 1921 |
| Keith Davey | Liberal | York | February 24, 1966 | Pearson | July 1, 1996 |
| Rupert Davies | Liberal | Kingston | November 19, 1942 | King | March 11, 1967 |
| Robert de Cotret | Progressive Conservative | Ottawa | June 5, 1979 | Clark | January 14, 1980 |
| Daniel Derbyshire | Liberal | Brockville | November 22, 1907 | Laurier | June 18, 1916 |
| Jean Noël Desmarais | Progressive Conservative | Sudbury | June 4, 1993 | Mulroney | July 25, 1995 |
| Walter Hamilton Dickson | Conservative | Niagara | October 23, 1867 | Royal Proclamation | February 19, 1884 |
| Consiglio Di Nino | Conservative | Ontario | August 30, 1990 | Mulroney | June 30, 2012 |
| John Dobson | Conservative | Lindsay | February 23, 1892 | Abbott | January 27, 1907 |
| James J. Donnelly | Conservative | South Bruce | May 26, 1913 | Borden | October 20, 1948 |
| Richard Doyle | Progressive Conservative | North York | March 19, 1985 | Mulroney | March 10, 1998 |
| Joseph James Duffus | Liberal | Peterborough West | February 15, 1940 | King | February 7, 1957 |
| Nicole Eaton | Conservative | Ontario | January 2, 2009 | Harper | January 21, 2020 |
| William Cameron Edwards | Liberal | Russell | March 17, 1903 | Laurier | September 17, 1921 |
| Art Eggleton | Liberal | Ontario | March 24, 2005 | Martin | September 29, 2018 |
| John Elliott | Liberal | Middlesex | January 29, 1940 | King | December 20, 1941 |
| Tobias Enverga | Conservative | Ontario | September 6, 2012 | Harper | November 16, 2017 |
| William Daum Euler | Liberal | Waterloo | May 11, 1940 | King | July 15, 1961 |
| Trevor Eyton | Conservative | Ontario | September 23, 1990 | Mulroney | July 12, 2009 |
| Iva Campbell Fallis | Conservative | Peterborough | July 20, 1935 | Bennett | March 7, 1956 |
| Thomas Farquhar | Liberal | Algoma | September 10, 1948 | King | September 27, 1962 |
| John Ferguson | Conservative | Ontario | October 1, 1892 | Abbott | September 22, 1896 |
| Doug Finley | Conservative | Ontario-South Coast | August 27, 2009 | Harper | May 11, 2013 |
| Isobel Finnerty | Liberal | Ontario | September 2, 1999 | Chrétien | July 15, 2005 |
| John Henry Fisher | Conservative | Ontario | July 26, 1917 | Borden | December 1, 1933 |
| Billa Flint | Liberal | Trent | October 23, 1867 | Royal Proclamation | June 14, 1894 |
| Gordon Fogo | Liberal | Carleton | January 25, 1949 | St. Laurent | July 6, 1952 |
| Josée Forest-Niesing | Independent Senators Group | Ontario | October 11, 2018 | Trudeau, J. | November 20, 2021 |
| Eugene Forsey | Liberal | Nepean | September 7, 1970 | Trudeau, P. E. | May 29, 1979 |
| George Foster | Conservative | Toronto | September 22, 1921 | Meighen | December 30, 1931 |
| William Fraser | Liberal | Trenton | June 25, 1949 | St. Laurent | October 26, 1962 |
| Alfred Ernest Fripp | Conservative | Toronto | December 30, 1933 | Bennett | March 25, 1938 |
| Royce Frith | Liberal | Glen Tay | April 5, 1977 | Trudeau, P. E. | August 29, 1994 |
| Francis Theodore Frost | Liberal | Leeds and Grenville | March 12, 1903 | Laurier | August 26, 1908 |
| Linda Frum | Conservative | Ontario | August 27, 2009 | Harper | August 21, 2021 |
| George Taylor Fulford | Liberal | Brockville | January 29, 1900 | Laurier | October 15, 1905 |
| Jean-Robert Gauthier | Liberal | Ontario (1994.11.23-2001.12.03) Ottawa-Vanier (2001.12.04-2004.10.22) | November 23, 1994 | Chrétien | October 22, 2004 |
| Irving Gerstein | Conservative | Ontario | January 2, 2009 | Harper | February 10, 2016 |
| Thomas Nicholson Gibbs | Liberal-Conservative | Newmarket | April 3, 1880 | Macdonald | April 7, 1883 |
| William Gibson | Liberal | Lincoln | February 11, 1902 | Laurier | May 4, 1914 |
| Robert Gladstone | Liberal | Wellington South | September 7, 1949 | St. Laurent | June 1, 1951 |
| John Morrow Godfrey | Liberal | Rosedale | October 5, 1973 | Trudeau, P. E. | June 28, 1987 |
| William Henry Golding | Liberal | Huron-Perth | June 25, 1949 | St. Laurent | December 31, 1961 |
| George Gordon | Conservative | Nipissing | October 17, 1912 | Borden | February 3, 1942 |
| James Robert Gowan | Liberal-Conservative | Barrie | January 29, 1885 | Macdonald | February 1, 1907 |
| Jerry Grafstein | Liberal | Metro Toronto | January 13, 1984 | Trudeau, P. E. | January 2, 2010 |
| George Perry Graham | Liberal | Eganville | December 20, 1926 | King | January 1, 1943 |
| John James Greene | Liberal | Niagara | September 1, 1972 | Trudeau, P. E. | October 23, 1978 |
| Allister Grosart | Progressive Conservative | Pickering | September 24, 1962 | Diefenbaker | December 13, 1981 |
| Stanley Haidasz | Liberal | Toronto-Parkdale | March 23, 1978 | Trudeau, P. E. | March 4, 1998 |
| John Hamilton | Conservative | Kingston | October 23, 1867 | Royal Proclamation | October 10, 1882 |
| Mac Harb | Liberal/Independent | Ontario | September 9, 2003 | Chrétien | August 26, 2013 |
| Arthur Charles Hardy | Liberal | Leeds | February 10, 1922 | King | March 13, 1962 |
| Salter Hayden | Liberal | Toronto | February 9, 1940 | King | November 1, 1983 |
| Andrew Haydon | Liberal | Ottawa | March 10, 1924 | King | November 10, 1932 |
| Horatio Clarence Hocken | Conservative | Toronto | December 30, 1933 | Bennett | February 18, 1937 |
| Adam Hope | Liberal | Hamilton | January 3, 1877 | MacKenzie | August 7, 1882 |
| Henry Herbert Horsey | Liberal | Prince Edward | December 14, 1928 | King | January 6, 1942 |
| Raoul Hurtubise | Liberal | Nipissing | June 9, 1945 | King | January 31, 1955 |
| Robert Jaffray | Liberal | Toronto | March 8, 1906 | Laurier | December 16, 1914 |
| Lyman Melvin Jones | Liberal | Toronto | January 21, 1901 | Laurier | April 15, 1917 |
| James Kelleher | Conservative | Ontario | September 23, 1990 | Mulroney | October 2, 2005 |
| William McDonough Kelly | Progressive Conservative | Port Severn | December 23, 1982 | Trudeau, P. E. | July 21, 2000 |
| Albert Edward Kemp | Conservative | Toronto | November 4, 1921 | Meighen | August 12, 1929 |
| Betty Kennedy | Liberal | Ontario | June 20, 2000 | Chrétien | January 4, 2001 |
| Colin Kenny | Liberal | Rideau | June 29, 1984 | Trudeau, P. E. | February 2, 2018 |
| Wilbert Keon | Conservative | Ottawa | September 27, 1990 | Mulroney | May 17, 2010 |
| James Kirkpatrick Kerr | Liberal | Toronto | March 12, 1903 | Laurier | December 4, 1916 |
| William Kerr | Liberal | Northumberland | March 15, 1899 | Laurier | November 22, 1906 |
| Mary Elizabeth Kinnear | Liberal | Welland | April 6, 1967 | Pearson | April 3, 1973 |
| Vim Kochhar | Conservative | Ontario | January 29, 2010 | Harper | September 21, 2011 |
| Joseph-Henri-Gustave Lacasse | Liberal | Essex | January 10, 1928 | King | January 18, 1953 |
| John Keith McBroom Laird | Liberal | Windsor | April 6, 1967 | Pearson | January 12, 1982 |
| Frances Lankin | Independent Senators Group | Ontario | March 18, 2016 | Trudeau, J. | October 21, 2024 |
| Norman Platt Lambert | Liberal | Ottawa | January 20, 1938 | King | November 4, 1965 |
| George Landerkin | Liberal | Grey | February 16, 1901 | Laurier | October 10, 1903 |
| Daniel Lang | Liberal | South York | February 14, 1964 | Pearson | June 13, 1994 |
| Laurier LaPierre | Liberal | Ontario | June 13, 2001 | Chrétien | November 21, 2004 |
| Marjory LeBreton | Conservative | Ontario | June 18, 1993 | Mulroney | July 4, 2015 |
| Elijah Leonard | Liberal | London | October 23, 1867 | Royal Proclamation | May 14, 1891 |
| Thomas D'Arcy Leonard | Liberal | Toronto-Rosedale | July 28, 1955 | St. Laurent | April 29, 1970 |
| John Lewis | Liberal | East Toronto | September 5, 1925 | King | May 18, 1935 |
| Edgar Sydney Little | Liberal | London | January 10, 1928 | King | December 22, 1943 |
| George Lynch-Staunton | Conservative | Hamilton | January 20, 1917 | Borden | March 19, 1940 |
| John Macdonald | Independent Liberal | Ontario | November 9, 1887 | Macdonald | February 4, 1890 |
| William Ross Macdonald | Liberal | Brantford | June 12, 1953 | St. Laurent | December 22, 1967 |
| Angus Claude Macdonell | Conservative | Toronto South | August 1, 1917 | Borden | January 1, 1921 |
| Archibald Hayes Macdonell | Conservative | Toronto South | November 7, 1921 | Meighen | November 12, 1939 |
| Donald MacInnes | Liberal-Conservative | Burlington | December 24, 1881 | Macdonald | December 2, 1900 |
| David Lewis Macpherson | Conservative | Saugeen | October 23, 1867 | Royal Proclamation | August 16, 1896 |
| Duncan Kenneth MacTavish | Liberal | Ontario | June 11, 1963 | Pearson | November 15, 1963 |
| Frank Mahovlich | Liberal | Toronto | June 11, 1998 | Chrétien | January 10, 2013 |
| Marian Maloney | Liberal | Surprise Lake | June 11, 1998 | Chrétien | August 16, 1999 |
| Lorna Marsden | Liberal | Toronto-Taddle Creek | January 24, 1984 | Trudeau, P. E. | August 31, 1992 |
| Sabi Marwah | Independent Senators Group | Ontario | November 10, 2016 | Trudeau, J. | September 7, 2023 |
| Duncan Marshall | Liberal | Peel | January 20, 1938 | King | January 16, 1946 |
| Paul Martin Sr. | Liberal | Windsor-Walkerville | April 20, 1968 | Trudeau, P. E. | October 30, 1974 |
| James Mason | Conservative | Toronto | May 26, 1913 | Borden | July 16, 1918 |
| Roderick Matheson | Conservative | Ontario | October 23, 1867 | Royal Proclamation | January 13, 1873 |
| Alexander McCall | Conservative | Simcoe | May 26, 1913 | Borden | June 10, 1925 |
| Lachlin McCallum | Liberal-Conservative | Monck | February 4, 1887 | Macdonald | January 13, 1903 |
| Archibald McCoig | Liberal | Kent | January 4, 1922 | King | November 21, 1927 |
| Walter McCrea | Liberal | Ontario | October 23, 1867 | Royal Proclamation | January 5, 1871 |
| Malcolm Wallace McCutcheon | Progressive Conservative | Gormley | August 9, 1962 | Diefenbaker | May 13, 1968 |
| Donald McDonald | Liberal | Ontario | October 23, 1867 | Royal Proclamation | January 20, 1879 |
| William Henry McGuire | Liberal | East York | December 20, 1926 | King | October 31, 1957 |
| George McHugh | Liberal | Victoria | January 21, 1901 | Laurier | November 28, 1926 |
| George McIlraith | Liberal | Ottawa Valley | April 27, 1972 | Trudeau, P. E. | July 29, 1983 |
| George Crawford McKindsey | Conservative | Milton | January 11, 1884 | Macdonald | February 12, 1901 |
| Peter McLaren | Conservative | Perth | February 21, 1890 | Macdonald | May 23, 1919 |
| William McMaster | Liberal | Midland | October 23, 1867 | Royal Proclamation | September 22, 1887 |
| Donald McMillan | Conservative | Alexandria | January 11, 1884 | Macdonald | July 26, 1914 |
| James McMullen | Liberal | North Wellington | February 11, 1902 | Laurier | March 18, 1913 |
| Arthur Meighen | Conservative | St. Mary's | March 3, 1932 | Bennett | January 16, 1942 |
| Michael Meighen | Conservative | St. Mary's | September 27, 1990 | Mulroney | February 6, 2012 |
| Don Meredith | Conservative | Ontario | December 20, 2010 | Harper | May 10, 2017 |
| Samuel Merner | Conservative | Hamburg | January 12, 1887 | Macdonald | August 11, 1908 |
| David Mills | Liberal | Bothwell | November 13, 1896 | Laurier | February 7, 1902 |
| Samuel Mills | Conservative | Ontario | October 23, 1867 | Royal Proclamation | January 24, 1874 |
| John Milne | Conservative | Hamilton | December 3, 1915 | Borden | March 4, 1922 |
| Lorna Milne | Liberal | Brampton (1995.09.22-1999.11.01) Peel County (1999.11.02-2009.12.13) | September 22, 1995 | Chrétien | December 13, 2009 |
| Oliver Mowat | Liberal | Ontario | July 15, 1896 | Laurier | November 18, 1897 |
| Robert Alexander Mulholland | Conservative | Port Hope | March 12, 1918 | Borden | October 1, 1927 |
| Jim Munson | Liberal | Ottawa | December 10, 2003 | Chrétien | July 14, 2021 |
| James Murdock | Liberal | Parkdale | March 20, 1930 | King | May 15, 1949 |
| Charles Murphy | Liberal | Russell | September 5, 1925 | King | November 24, 1935 |
| Lowell Murray | Progressive Conservative | Pakenham | September 13, 1979 | Clark | September 26, 2011 |
| Nancy Ruth | Conservative | Cluny | March 24, 2005 | Martin | January 6, 2017 |
| Joan Neiman | Liberal | Peel | September 1, 1972 | Trudeau, P. E. | September 9, 1995 |
| Frederic Thomas Nicholls | Conservative | Toronto | January 20, 1917 | Borden | October 25, 1921 |
| Joseph Northwood | Liberal-Conservative | Lambton | May 19, 1880 | Macdonald | October 29, 1886 |
| Michael John O'Brien | Liberal | Renfrew | September 1, 1918 | Borden | September 1, 1925 |
| Frank Patrick O'Connor | Liberal | Scarborough Junction | December 6, 1935 | King | August 21, 1939 |
| John O'Donohoe | Liberal-Conservative | Erie | May 21, 1882 | Macdonald | December 7, 1902 |
| Thanh Hai Ngo | Conservative | Ontario | September 6, 2012 | Harper | January 3, 2022 |
| Victor Oh | Conservative | Ontario | January 25, 2013 | Harper | June 10, 2024 |
| Grattan O'Leary | Progressive Conservative | Carleton | September 24, 1962 | Diefenbaker | April 7, 1976 |
| Frederick Forsyth Pardee | Liberal | Lambton | March 11, 1922 | King | February 4, 1927 |
| Norman McLeod Paterson | Liberal | Milton | February 9, 1940 | King | June 18, 1981 |
| Landon Pearson | Liberal | Ontario | September 15, 1994 | Chrétien | November 16, 2005 |
| Ebenezer Perry | Conservative | Ontario | February 2, 1871 | Macdonald | May 1, 1876 |
| Michael Pitfield | Independent | Ottawa-Vanier | December 22, 1982 | Trudeau, P. E. | June 1, 2010 |
| Josiah Burr Plumb | Conservative | Ontario | February 8, 1883 | Macdonald | March 12, 1888 |
| Vivienne Poy | Liberal | Toronto | September 17, 1998 | Chrétien | September 17, 2012 |
| Clive Pringle | Conservative | Cobourg | January 8, 1917 | Borden | May 2, 1920 |
| William Proudfoot | Liberal | Huron | November 6, 1919 | Borden | December 3, 1922 |
| James Palmer Rankin | Liberal | Perth North | September 9, 1925 | King | June 15, 1934 |
| Valentine Ratz | Liberal | Parkhill | January 18, 1909 | Laurier | March 1, 1924 |
| Robert Read | Conservative | Quinté | February 24, 1871 | Macdonald | June 29, 1896 |
| David Reesor | Liberal | King's | October 23, 1867 | Royal Proclamation | January 1, 1901 |
| John Dowsley Reid | Conservative | Grenville | September 22, 1921 | Meighen | August 26, 1929 |
| Henry Westman Richardson | Conservative | Kingston | January 20, 1917 | Borden | October 27, 1918 |
| Gideon Robertson | Conservative | Welland | January 20, 1917 | Borden | August 5, 1933 |
| John Alexander Robertson | Progressive Conservative | Kenora-Rainy River | November 29, 1962 | Diefenbaker | February 19, 1965 |
| Arthur Roebuck | Liberal | Toronto-Trinity | April 18, 1945 | King | November 17, 1971 |
| George William Ross | Liberal | Middlesex | January 15, 1907 | Laurier | March 7, 1914 |
| John Ross | Conservative | Ontario | October 23, 1867 | Royal Proclamation | January 31, 1871 |
| Bob Runciman | Conservative | Thousand Islands and Rideau Lakes | January 29, 2010 | Harper | August 10, 2017 |
| William Eli Sanford | Conservative | Hamilton | February 8, 1887 | Macdonald | July 10, 1899 |
| Richard William Scott | Liberal | Ottawa | March 13, 1874 | Mackenzie | April 23, 1913 |
| Hugh Segal | Conservative | Kingston-Frontenac-Leeds | August 2, 2005 | Martin | June 15, 2014 |
| Asha Seth | Conservative | Ontario | January 6, 2012 | Harper | December 15, 2014 |
| Benjamin Seymour | Conservative | Newcastle | October 23, 1867 | Royal Proclamation | March 23, 1880 |
| James Shaw | Conservative | Ontario | October 23, 1867 | Royal Proclamation | February 6, 1878 |
| Ian Shugart | Independent | Ontario | September 26, 2022 | Trudeau, J. | October 25, 2023 |
| John Simpson | Liberal | Bowmanville | October 23, 1867 | Royal Proclamation | March 23, 1885 |
| Ian David Sinclair | Liberal | Halton | December 23, 1983 | Trudeau, P. E. | September 27, 1988 |
| James Skead | Conservative | Rideau | October 23, 1867 December 23, 1881 | Royal Proclamation Macdonald | January 20, 1881 July 5, 1884 |
| David Smith | Liberal | Cobourg | June 25, 2002 | Chrétien | May 16, 2016 |
| Ernest D'Israeli Smith | Conservative | Wentworth | May 26, 1913 | Borden | January 10, 1946 |
| Frank Smith | Conservative | Toronto | February 2, 1871 | Macdonald | January 1, 1900 |
| James Houston Spence | Liberal | North Bruce | January 10, 1928 | King | February 21, 1939 |
| Thomas Simpson Sproule | Conservative | Grey | December 3, 1915 | Borden | November 10, 1917 |
| Richard Stanbury | Liberal | York Centre | February 13, 1968 | Pearson | May 2, 1998 |
| Peter Stollery | Liberal | Bloor & Yonge | July 2, 1981 | Trudeau, P. E. | November 29, 2010 |
| Joseph Albert Sullivan | Progressive Conservative | North York | October 12, 1957 | Diefenbaker | February 18, 1985 |
| Michael Sullivan | Conservative | Kingston | January 29, 1885 | Macdonald | November 29, 1912 |
| Donald Sutherland | Conservative | Oxford | July 20, 1935 | Bennett | January 1, 1949 |
| George Taylor | Conservative | Leeds | November 14, 1911 | Borden | March 26, 1919 |
| William Horace Taylor | Liberal | Norfolk | April 18, 1945 | King | June 1, 1966 |
| Andy Thompson | Liberal | Dovercourt | April 6, 1967 | Pearson | March 23, 1998 |
| James Tunney | Liberal | Grafton | March 8, 2001 | Chrétien | June 16, 2002 |
| Charles Turner | Liberal | London | July 9, 1984 | Turner | March 24, 1991 |
| James Turner | Liberal-Conservative | Ontario | January 11, 1884 | Macdonald | October 10, 1889 |
| Alexander Vidal | Conservative | Sarnia | January 15, 1873 | Macdonald | November 18, 1906 |
| David James Walker | Progressive Conservative | Toronto | February 4, 1963 | Diefenbaker | September 30, 1989 |
| John Webster | Conservative | Brockville | March 12, 1918 | Borden | December 1, 1928 |
| Eugene Whelan | Liberal | South Western Ontario | August 9, 1996 | Chrétien | July 11, 1999 |
| Howard Wetston | Independent Senators Group | Ontario | November 10, 2016 | Trudeau, J. | June 3, 2022 |
| George Stanley White | Progressive Conservative | Hastings-Frontenac | September 20, 1957 | Diefenbaker | November 17, 1972 |
| Gerald Verner White | Conservative | Pembroke | November 6, 1919 | Borden | October 24, 1948 |
| Vernon White | Canadian Senators Group | Ontario | February 20, 2012 | Harper | February 21, 2034 |
| Harry Albert Willis | Progressive Conservative | Peel | June 15, 1962 | Diefenbaker | March 23, 1972 |
| Cairine Wilson | Liberal | Rockcliffe | February 15, 1930 | King | March 3, 1962 |
| John Henry Wilson | Liberal | St. Thomas | March 8, 1904 | Laurier | July 3, 1912 |
| Lois Miriam Wilson | Independent | Toronto | June 11, 1998 | Chrétien | April 8, 2002 |
| Andrew Trew Wood | Liberal | Hamilton | January 21, 1901 | Laurier | January 21, 1903 |
| Allan Lee Woodrow | Liberal | Toronto Centre | May 19, 1953 | St. Laurent | March 3, 1966 |