| Senate | Election | Senator (Party) | Senator (Party) | Senator (Party) | Senator (Party) | Senator (Party) | Senator (Party) | Senator (Party) | Senator (Party) | Senator (Party) | Senator (Party) | Senator (Party) | Senator (Party) |
|---|
| 1901–1903 | 1901 | | Albert Gould (Free Trade/ Liberal/ Nationalist) [1] | | Edward Millen (Free Trade/ Liberal/ Nationalist) [2] | | Edward Pulsford (Free Trade/ Liberal) [3] | | James Walker (Free Trade/ Liberal) [4] | | John Neild (Free Trade/ Liberal) [5] | | Richard O'Connor (Protectionist) [6] | 6 senators per state 1901-1950 |
|---|
| 1903 | Dr Charles Mackellar (Protectionist) [7] |
| 1904–1906 | 1903 | | John Gray (Free Trade/ Liberal) [8] |
| 1907–1910 | 1906 |
| 1909 | | | | | | |
| 1910–1913 | 1910 | | Arthur Rae (Labor) [9] | | Albert Gardiner (Labor) [10] | | Allan McDougall (Labor) [11] |
| 1913–1914 | 1913 | Charles Oakes (Liberal) [12] |
| 1914–1917 | 1914 | David Watson (Labor) [13] | | John Grant (Labor) [14] |
| 1917 | | |
| 1917–1920 | 1917 | Herbert Pratten (Nationalist) [15] | | Josiah Thomas (Nationalist) [16] |
| 1920–1923 | 1919 | | Charles Cox (Nationalist/ UAP) [17] | | Walter Duncan (Nationalist/ Independent/ Australian/ UAP) [18] |
| 1921 | Henry Garling (Nationalist) [19] |
| 1922 | | Allan McDougall (Labor) [11] |
| 1923–1926 | 1922 | | John Grant (Labor) [14] |
| 1923 | Walter Massy-Greene (Nationalist) [20] |
| 1924 | Jack Power (Labor) [21] |
| April 1925 | William Gibbs (Labor) [22] |
| Nov 1925 | | Josiah Thomas (Nationalist) [16] | | Percy Abbott (Country) [23] |
| 1926–1929 | 1925 | | Walter Massy-Greene (Nationalist/ UAP) [20] |
| June 1928 | | Albert Gardiner (Independent Labor) [10] |
| Nov 1928 | | John Dooley (Labor) [24] |
| 1929–1932 | 1928 | | Arthur Rae (Labor/ Lang Labor) [9] | | James Dunn (Labor/ Lang Labor) [25] |
| Aug 1929 | |
| Dec 1929 | |
| 1931a | | | | | |
| 1931b | | Patrick Mooney (Lang Labor) [26] |
| 1932–1935 | 1931 | | Charles Hardy (Country) [27] |
| 1935–1938 | 1934 | | Mac Abbott (Country) [28] | | Dick Dein (UAP) [29] | | Lionel Courtenay (UAP) [30] |
| 1935 | Guy Arkins (UAP) [31] |
| 1937 | | Bill Ashley (Labor) [32] |
| 1938–1941 | 1937 | | Stan Amour (Labor /Labor (Non-Communist) /Labor [33] | | John Armstrong (Labor) [34] | | Tom Arthur (Labor) [35] |
| 1940 | |
| 1941 | | |
| 1941–1944 | 1940 | | William Large (Labor) [36] | | James Arnold (Labor) [37] |
| 1944–1947 | 1943 | Donald Grant (Labor) [38] |
| 1947–1950 | 1946 |
| 1950 | | Albert Reid (Country) [39] | | Bill Spooner (Liberal) [40] | | John McCallum (Liberal) [41] | | John Tate (Liberal) [42] | 10 senators per state 1950-1984 |
|---|
| 1950–1951 | 1949 |
| 1951–1953 | 1951 | | Alister McMullin (Liberal) [43] |
| 1953–1956 | 1953 | Ken Anderson (Liberal) [44] |
| 1956–1959 | 1955 |
| July 1958 | James Ormonde (Labor) [45] |
| Nov 1958 | | Colin McKellar (Country) [46] |
| 1959–1962 | 1958 | James Ormonde (Labor) [45] |
| 1962–1965 | 1961 | Doug McClelland (Labor) [47] | | Joe Fitzgerald (Labor) [48] | | Lionel Murphy (Labor) [49] |
| 1965–1968 | 1964 | Tony Mulvihill (Labor) [50] | | Tom Bull (Country) [51] |
| 1965 | Bob Cotton (Liberal) [52] |
| 1968–1971 | 1967 |
| Aug 1970 | Douglas Scott (Country) [53] |
| Nov 1970 | | Jack Kane (DLP) [54] |
| 1971 | Jim McClelland (Labor) [55] |
| 1971–1974 | 1970 | John Carrick (Liberal) [56] | | Arthur Gietzelt (Labor) [57] |
| 1974–1975 | 1974 | | Douglas Scott (Country) [53] | | Peter Baume (Liberal) [58] |
| 1975 | | Cleaver Bunton (Independent) [59] |
| 1975–1978 | 1975 | | Kerry Sibraa (Labor) [60] | Misha Lajovic (Liberal) [61] |
| 1978–1981 | 1977 | | Colin Mason (Democrat) [62] |
| 1978 | Kerry Sibraa (Labor) [60] | Chris Puplick (Liberal) [63] |
| 1981–1983 | 1980 | | Bruce Childs (Labor) [64] |
| 1983–1985 | 1983 | Graham Richardson (Labor) [65] |
| 1984 | | David Brownhill (National) [66] | | Chris Puplick (Liberal) [63] |
| 1985–1987 | 1984 | | John Morris (Labor) [67] | Michael Baume (Liberal) [68] |
| 1987 | Sue West (Labor) [69] |
| 1987–1990 | 1987 | Bronwyn Bishop (Liberal) [70] | | Robert Wood (NDP) [71] | Paul McLean (Democrat) [72] |
| 1988 | | Irina Dunn (Independent) [73] |
| 1989 | John Faulkner (Labor) [74] |
| 1990–1993 | 1990 | Sue West (Labor) [69] | | Stephen Loosley (Labor) [75] | | Vicki Bourne (Democrat) [76] |
| 1991 | John Tierney (Liberal) [77] | Karin Sowada (Democrat) [78] |
| 1993–1996 | 1993 | | Sandy Macdonald (National) [79] |
| 1994 | Bob Woods (Liberal) [80] | Michael Forshaw (Labor) [81] | Belinda Neal (Labor) [82] |
| 1995 | Tom Wheelwright (Labor) [83] |
| 1996–1999 | 1996 | | Helen Coonan (Liberal) [84] |
| 1996 | Bill Heffernan (Liberal) [85] |
| 1997 | Marise Payne (Liberal) [86] | George Campbell (Labor) [87] |
| 1998 | Steve Hutchins (Labor) [88] |
| 1999–2002 | 1998 | | Aden Ridgeway (Democrat) [89] |
| 2000 | Sandy Macdonald (National) [79] |
| 2002–2005 | 2001 | Ursula Stephens (Labor) [90] | | Kerry Nettle (Greens) [91] |
| 2005 | Concetta Fierravanti-Wells (Liberal) [92] |
| 2005–2008 | 2004 | | Fiona Nash (National) [93] |
| 2008–2011 | 2007 | Doug Cameron (Labor) [94] | John Williams (National) [95] | | Mark Arbib (Labor) [96] |
| 2011–2014 | 2010 | Matt Thistlethwaite (Labor) [97] | | Lee Rhiannon (Greens) [98] |
| 2011 | Arthur Sinodinos (Liberal) [99] |
| 2012 | Bob Carr (Labor) [100] |
| 2013 | Sam Dastyari (Labor) [101] | Deborah O'Neill (Labor) [102] |
| 2014–2016 | 2013 | | David Leyonhjelm (Liberal Democrats) [103] |
| 2015 | Jenny McAllister (Labor) [104] |
| 2016–2019 | 2016 | | Brian Burston (One Nation /UAP) [105] |
| 2017 | | Jim Molan (Liberal) [106] |
| 2018 | Kristina Keneally (Labor) [107] | Mehreen Faruqi (Greens) [108] | |
| 2019 | Duncan Spender (Liberal Democrats) |
| 2019–2022 | 2019 | | Tim Ayres (Labor) [109] | Tony Sheldon (Labor) [110] | Andrew Bragg (Liberal) [111] | | Hollie Hughes (Liberal) [112] | Perin Davey (National) [113] |
| 2019 | Jim Molan (Liberal) [106] |
| 2022–2025 | 2022 | | David Shoebridge (Greens) [114] | | Ross Cadell (National) [115] |
| 2023 | Dave Sharma (Liberal) [116] | Maria Kovacic (Liberal) [117] |
| 2025–2028 | 2025 | Jessica Collins (Liberal) [118] | | Warwick Stacey (One Nation) [118] |