This is a list of Members of the Parliament of Australia who represented more than one state or territory during their federal parliamentary career.
Most people in the list represented different states or territories in the House of Representatives. Nobody has ever represented different states or territories in the Senate, although various attempts have been made. Only one person, Barnaby Joyce, has ever represented one state in the Senate and a different state in the House of Representatives.
The first person to represent a second state was Billy Hughes. He had represented New South Wales since 1901, and was elected to a Victorian seat on 5 May 1917. On 16 December 1922 he was again elected to a NSW seat, the only person to return to his original state. Hughes is also the only person in this list whose parliamentary service was continuous.
The only person who represented both a state and a territory was Lewis Nott (Queensland 1925–28; Australian Capital Territory 1949–51).
All states and territories except South Australia and the Northern Territory are represented in the list.
| Name | State/ Territory |
House | Electorate | From | To | Reason | Comments |
|---|---|---|---|---|---|---|---|
| Billy Hughes | NSW | H of R | West Sydney | 29 March 1901 | 4 May 1917 | Transferred seat | The first person to represent a second state (5 May 1917). The only person to return to his original state (16 December 1922). |
| VIC | Bendigo | 5 May 1917 | 15 December 1922 | Transferred seat | |||
| NSW | North Sydney | 16 December 1922 | 9 December 1949 | Transferred seat | |||
| Bradfield | 10 December 1949 | 28 October 1952 | Died | ||||
| Barnaby Joyce | QLD | Senate | Queensland | 1 July 2005 | 8 August 2013 | Resigned | The only person to have represented one state in the Senate and a different state in the House of Representatives |
| NSW | H of R | New England | 7 September 2013 | 27 October 2017 | Ruled ineligible to have been a candidate due to dual citizenship | ||
| 2 December 2017 | incumbent | ||||||
| Nelson Lemmon | WA | H of R | Forrest | 21 August 1943 | 10 December 1949 | Defeated | |
| NSW | St George | 29 May 1954 | 10 December 1955 | Defeated | |||
| Parker Moloney | VIC | H of R | Indi | 13 April 1910 | 31 May 1913 | Defeated | |
| 5 September 1914 | 5 May 1917 | Defeated | |||||
| NSW | Hume | 13 December 1919 | 19 December 1931 | Defeated | |||
| Lewis Nott | QLD | H of R | Herbert | 14 November 1925 | 17 November 1928 | Defeated | The only person who represented both a state and a territory (10 December 1949). |
| ACT | Australian Capital Territory | 10 December 1949 | 28 April 1951 | Defeated | |||
| William Spence | NSW | H of R | Darling | 29 March 1901 | 5 May 1917 | Defeated | In 1919 he ran unsuccessfully for a Victorian seat, which would have been his third state had he won. |
| TAS | Darwin | 30 June 1917 (by-election) |
13 December 1919 | Defeated |
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