The Electoral district of Northern Territory was an electoral district of the South Australian House of Assembly from 1890 to 1911. The electorate encompassed all of what is the Northern Territory when the Territory was included as part of South Australia for political purposes.
The district returned two members at each election and supported independent members for much of its existence.
The most prominent member for the electorate was Vaiben Solomon, the twenty-first Premier of South Australia.
| Member | Party | Term |
|---|---|---|
| Vaiben Solomon | none | 1890 - 1901 |
| John Langdon Parsons | none | 1890 - 1893 |
| Walter Griffiths | none | 1893 - 1900 |
| Charles Edward Herbert | NDL/ANL | 1900 - 1905 |
| Samuel James Mitchell | Independent | 1901 - 1910 |
| Vaiben Solomon | Independent Conservative | 1905 - 1908 |
| Thomas Crush | ALP | 1908 - 1911 |
| John Alexander Voules Brown | Liberal Union | 1910 - 1911 |