{|class="wikitable sortable"
|-
! Senator !! Lifespan !! Party !! Prov. !! Entered !! Left !! Appointed by !! Left due to !! For life?
|-
| Charles-Eugène Panet || 1829–1898 || L || QC || 27 March 1874 || February 1875 || Mackenzie || Resignation || Y
|-
| Louis Panet || 1794–1884 || C || QC || 10 February 1871 || 26 March 1874 || Macdonald || Resignation || Y
|-
| Anselme-Homère Pâquet || 1830–1891 || L || QC || 9 February 1875 || 22 December 1891 || Mackenzie || Death || Y
|-
| Eugène Paquet || 1867–1951 || C || QC || 14 August 1935 || 8 May 1951 || Bennett || Death || Y
|-
| Joseph Arthur Paquet || 1857–1901 || L || QC || 27 June 1898 || 29 March 1901 || Laurier || Death || Y
|-
| Philippe-Jacques Paradis || 1868–1933 || L || QC || 14 December 1927 || 20 June 1933 || King || Death || Y
|-
| Frederick Forsyth Pardee || 1866–1927 || L || ON || 11 March 1922 || 4 February 1927 || King || Death || Y
|-
| Georges Parent || 1879–1942 || L || QC || 3 June 1930 || 14 December 1942 || King || Death || Y
|-
| Kim Pate || 1959–present|| NA || ON || 10 November 2016 || — || Trudeau, J. || — ||
|-
| Norman McLeod Paterson || 1883–1983 || L || ON || 9 February 1940 || 18 June 1981 || King || Voluntary retirement || Y
|-
| Dennis Patterson || 1948–present|| C || NU || 27 August 2009 || 29 December 2023 || Harper || Retirement ||
|-
| Rebecca Patterson || 1965–present || || ON || 21 November 2022 || — || Trudeau, J. || — ||
|-
| Arthur Maurice Pearson || 1890–1976 || PC || SK || 12 October 1957 || 31 March 1971 || Diefenbaker || Voluntary retirement || Y
|-
| Landon Pearson || 1930–2023 || L || ON || 15 September 1994 || 16 November 2005 || Chrétien || Retirement ||
|-
| Chales Pelletier || 1837–1911 || L || QC || 2 February 1877 || 1 September 1904 || Mackenzie || Resignation || Y
|-
| Edward Goff Penny || 1820–1881 || L || QC || 13 March 1874 || 11 October 1881 || Mackenzie || Death || Y
|-
| George Penny || 1897–1949 || L || NL || 17 August 1949 || 4 December 1949 || St. Laurent || Death || Y
|-
| Lucie Pépin || 1936–present|| L || QC || 8 April 1997 || 7 September 2011 || Chrétien || Retirement ||
|-
| William Dell Perley || 1838–1909 || C || NT || 3 August 1888 || 15 July 1909 || Macdonald || Death || Y
|-
| Ray Perrault || 1926–2008 || L || BC || 5 October 1973 || 6 February 2001 || Trudeau, P. || Retirement ||
|-
| Ebenezer Perry || 1788–1876 || C || ON || 2 February 1871 || 1 May 1876 || Macdonald || Death || Y
|-
| Melvin Perry || 1925–2002 || L || PE || 11 August 1999 || 23 August 2000 || Chrétien || Retirement ||
|-
| Robert Peterson || 1937–2020 || L || SK || 24 March 2005 || 19 October 2012 || Martin || Retirement ||
|-
| Chantal Petitclerc || 1969–present|| NA || QC || 1 April 2016 || — || Trudeau, J. || — ||
|-
| Iris Petten || 1959–present || || NL || 3 May 2023 || — || Trudeau, J. || — ||
|-
| Ray Petten || 1897–1961 || L || NL || 17 August 1949 || 16 February 1961 || St. Laurent || Death || Y
|-
| William Petten || 1923–1999 || L || NL || 8 April 1968 || 28 January 1998 || Pearson || Retirement ||
|-
| Gerard Phalen || 1934–2021 || L || NS || 4 October 2001 || 28 March 2009|| Chrétien || Retirement ||
|-
| Lazarus Phillips || 1895–1986 || L || QC || 9 February 1968 || 10 October 1970 || Pearson || Retirement ||
|-
| Orville Howard Phillips || 1924–2009 || PC || PE || 5 February 1963 || 24 March 1999 || Diefenbaker || Voluntary retirement || Y
|-
| Frederick William Pirie || 1893–1956 || L || NB || 19 April 1945 || 3 October 1956 || King || Death || Y
|-
| Michael Pitfield || 1937–2017 || I || ON || 22 December 1982 || 1 June 2010 || Trudeau, P. || Resignation ||
|-
| Madeleine Plamondon || 1931–present|| I || QC || 9 September 2003 || 21 September 2006 || Chrétien || Retirement ||
|-
| Albert Planta || 1868–1952 || C || BC || 26 June 1917 || 1 December 1935 || Borden || Resignation || Y
|-
| Don Plett || 1950–present|| C || MB || 27 August 2009 || — || Harper || — ||
|-
| Josiah Burr Plumb || 1816–1888 || C || ON || 8 February 1883 || 12 March 1888 || Macdonald || Death || Y
|-
| Pascal Poirier || 1852–1933 || LC || NB || 9 March 1885 || 25 September 1933 || Macdonald || Death || Y
|-
| Rose-May Poirier || 1954–present|| C || NB || 28 February 2010 || — || Harper || — ||
|-
| Jean-Marie Poitras || 1918–2009 || PC || QC || 26 September 1988 || 25 May 1993 || Mulroney || Resignation ||
|-
| Rufus Henry Pope || 1857–1944 || C || QC || 14 November 1911 || 16 May 1944 || Borden || Death || Y
|-
| Jean-François Pouliot || 1890–1969 || L || QC || 28 July 1955 || 28 June 1968 || St. Laurent || Resignation || Y
|-
| Charles Gavan Power || 1888–1968 || L || QC || 28 July 1955 || 30 May 1968 || St. Laurent || Death || Y
|-
| Lawrence Geoffrey Power || 1841–1921 || L || NS || 2 February 1877 || 12 September 1921 || Mackenzie || Death || Y
|-
| Vivienne Poy || 1941–present|| L || ON || 17 September 1998 || 17 September 2012 || Chrétien || Resignation ||
|-
| Christian Pozer || 1835–1884 || N || QC || 20 September 1876 || 18 July 1884 || Mackenzie || Death || Y
|-
| Calvert Pratt || 1888–1963 || L || NL || 24 January 1951 || 13 November 1963 || St. Laurent || Death || Y
|-
| André Pratte || 1957–present|| NA || QC || 1 April 2016 || 21 October 2019 || Trudeau, J. || Resignation ||
|-
| Jules-Édouard Prévost || 1871–1943 || L || QC || 3 June 1930 || 13 October 1943 || King || Death || Y
|-
| David Edward Price || 1826–1883 || C || QC || 23 October 1867 || 22 August 1883 || Royal proclamation || Death || Y
|-
| Evan John Price || 1840–1899 || C || QC || 1 December 1888 || 30 August 1899 || Macdonald || Death || Y
|-
| Clarence Primrose || 1830–1902 || LC || NS || 28 November 1892 || 2 December 1902 || Abbott || Death || Y
|-
| Joseph Benjamin Prince || 1855–1920 || L || SK || 29 July 1909 || 26 October 1920 || Laurier || Death || Y
|-
| Clive Pringle || 1871–1920 || C || ON || 8 January 1917 || 2 May 1920 || Borden || Death || Y
|-
| Paul Prosper || 1965–present || || NS || 6 July 2023 || — || Trudeau, J. || — ||
|-
| William Proudfoot || 1859–1922 || LU || ON || 6 November 1919 || 3 December 1922 || Borden || Death || Y
|-
| Benjamin Charles Prowse || 1862–1930 || L || PE || 5 May 1911 || 22 February 1930 || Laurier || Death || Y
|-
| James Harper Prowse || 1913–1976 || L || AB || 24 February 1966 || 27 September 1976 || Pearson || Death ||
|-
| Samuel Prowse || 1835–1902 || L-C || PE || 14 September 1889 || 14 January 1902 || Macdonald || Death || Y
|-
| Marcel Prud'homme || 1934–2017 || I || QC || 26 May 1993 || 30 November 2009 || Mulroney || Retirement ||
|}