| Agency Name: | Department of External Territories |
| Formed: | 26 June 1941 |
| Preceding1: | Prime Minister's Department – the Territories Branch |
| Dissolved: | 11 May 1951 |
| Superseding: | Department of Territories (I) |
| Type: | Department |
| Jurisdiction: | Commonwealth of Australia |
| Minister1 Name: | Allan McDonald |
| Minister1 Pfo: | Minister (1941) |
| Minister2 Name: | James Fraser |
| Minister2 Pfo: | Minister (1941–1943) |
| Minister3 Name: | Eddie Ward |
| Minister3 Pfo: | Minister (1943–1949) |
| Minister4 Name: | Percy Spender |
| Minister4 Pfo: | Minister (1949–1951) |
| Minister5 Name: | Richard Casey |
| Minister5 Pfo: | Minister (1951) |
| Chief1 Name: | Frank Strahan |
| Chief1 Position: | Secretary (1941–1944) |
| Chief2 Name: | James Reginald Halligan |
| Chief2 Position: | Secretary (1944–1951) |
| Headquarters: | Barton, Canberra |
The Department of External Territories was an Australian government department that existed between June 1941 and May 1951.
Information about the department's functions and government funding allocation could be found in the Administrative Arrangements Orders, the annual Portfolio Budget Statements and in the Department's annual reports.
The matters dealt with by the department at its creation were:
The Department was a Commonwealth Public Service department, staffed by officials who were responsible to the Minister for External Territories.