| Agency Name: | Department of the Interior |
| Formed: | 12 April 1932 |
| Preceding1: | Department of Works and Railways Department of Home Affairs (II) Department of Transport (I) |
| Dissolved: | 26 April 1939 |
| Superseding: | Department of the Interior (II) Department of Supply and Development (I) |
| Type: | Department |
| Jurisdiction: | Commonwealth of Australia |
| Minister1 Name: | Archdale Parkhill |
| Minister1 Pfo: | Minister (1932) |
| Minister2 Name: | John Perkins |
| Minister2 Pfo: | Minister (1932–1934) |
| Minister3 Name: | Eric Harrison |
| Minister3 Pfo: | Minister (1934) |
| Minister4 Name: | Thomas Paterson |
| Minister4 Pfo: | Minister (1934–1937) |
| Minister5 Name: | John McEwen |
| Minister5 Pfo: | Minister (1937–1939) |
| Chief1 Name: | Herbert Charles Brown |
| Chief1 Position: | Secretary (1932–1935) |
| Chief2 Name: | Joseph Carrodus |
| Chief2 Position: | Secretary (1935–1939) |
| Headquarters: | Canberra |
The Department of the Interior was an Australian government department that existed between April 1932 and April 1939. It was the first so-named Australian Government department to be created, and was replaced by the Department of the Interior (II).
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 Department was a composite department and dealt with a diverse range of activities. According to National Archives of Australia records, at its creation the Department dealt with:
The Department was a Commonwealth Public Service department, staffed by officials who were responsible to the Minister for the Interior.