# Members of the Australian Senate, 1938–1941

   Senate composition at 1 July 1938
   Government (20) - (2 seat majority)
    United Australia Party (16)
    Country Party (3)
    Independent Country (1)
   Opposition (16)
    Labor (16)
     Changes in composition
   * ↑ Senator William Gibson had been expelled by the Country Party in September 1935. He was listed as an "Independent Country" member and continued to support the government.
   * ↑ At the September 1940 election Labor Senator Jim Sheehan was defeated for a casual vacancy by UAP candidate John Spicer.
This is a list of members of the Australian Senate from 1938 to 1941. Half of its members were elected at the 15 September 1934 election and had terms starting on 1 July 1935 and finishing on 30 June 1941; the other half were elected at the 23 October 1937 election and had terms starting on 1 July 1938 and finishing on 30 June 1944. The process for filling casual vacancies was complex. While senators were elected for a six-year term, people appointed to a casual vacancy only held office until the earlier of the next election for the House of Representatives or the Senate.
| Senator | Party | State | Term ending | Years in office |
| Mac Abbott | Country | New South Wales | 1941 | 1935–1941 |
| Stan Amour | Labor / Non-Comm. Labor | New South Wales | 1944 | 1938–1965 |
| John Armstrong | Labor / Non-Comm. Labor | New South Wales | 1944 | 1938–1962 |
| Tom Arthur | Labor | New South Wales | 1944 | 1938–1944 |
| Bill Ashley | Labor | New South Wales | 1941 | 1938–1962 |
| Bill Aylett | Labor | Tasmania | 1944 | 1938–1965 |
| John Barnes | Labor | Victoria | 1944 | 1913–20, 1923–35 |
| Charles Brand | United Australia | Victoria | 1941 | 1935–1947 |
| Gordon Brown | Labor | Queensland | 1944 | 1932–1965 |
| Don Cameron | Labor | Victoria | 1944 | 1938–1962 |
| Robert Clothier | Labor | Western Australia | 1944 | 1938–1950 |
| Herbert Collett | United Australia | Western Australia | 1941 | 1933–1947 |
| Joe Collings | Labor | Queensland | 1944 | 1932–1950 |
| Walter Cooper | Country | Queensland | 1941 | 1928–1932, 1935–1968 |
| Ben Courtice | Labor | Queensland | 1944 | 1937–1962 |
| Thomas Crawford | United Australia | Queensland | 1941 | 1917–1947 |
| James Cunningham | Labor | Western Australia | 1944 | 1937–1943 |
| Richard Darcey | Labor | Tasmania | 1944 | 1938–1944 |
| Dick Dein | United Australia | New South Wales | 1941 | 1935–1941 |
| Harry Foll | United Australia | Queensland | 1941 | 1917–1947 |
| James Fraser | Labor | Western Australia | 1944 | 1938–1959 |
| William Gibson | Independent / Country | Victoria | 1941 | 1935–1947 |
| Charles Grant | United Australia | Tasmania | 1941 | 1925, 1932–1941 |
| John Hayes | United Australia | Tasmania | 1941 | 1923–1947 |
| Herbert Hays | United Australia | Tasmania | 1941 | 1923–1947 |
| Bertie Johnston | Country | Western Australia | 1941 | 1929–1942 |
| Richard Keane | Labor | Victoria | 1944 | 1938–1946 |
| Charles Lamp | Labor | Tasmania | 1944 | 1938–1950 |
| John Leckie | United Australia | Victoria | 1941 | 1935–1947 |
| Allan MacDonald | United Australia | Western Australia | 1941 | 1935–1947 |
| Philip McBride | United Australia | South Australia | 1944 | 1937–1944 |
| Alexander McLachlan | United Australia | South Australia | 1944 | 1926–1944 |
| James McLachlan | United Australia | South Australia | 1941 | 1935–1947 |
| George McLeay | United Australia | South Australia | 1941 | 1935–1947, 1950–1955 |
| Jim Sheehan | Labor | Victoria | 1940 | 1938–1940, 1944–1962 |
| John Spicer | United Australia | Victoria | 1944 | 1940–1944, 1950–1956 |
| Oliver Uppill | United Australia | South Australia | 1941 | 1935–1944 |
| Keith Wilson | United Australia | South Australia | 1944 | 1938–1944 |