Tanganyika: Head of State: 1961-1962
All Heads of State in the following index are also Heads of State in the United Kingdom of Great Britain and Northern Ireland, and other realms and territories.
| By the Grace of God, of the United Kingdom of Great Britain and Northern Ireland and of Her other Realms and Territories Queen, Head of the Commonwealth, Defender of the Faith | |
| 9 Dec 1961 - 12 Jan 1962 | Elizabeth II |
| Queen of Tanganyika and of Her Other Realms and Territories, Head of the Commonwealth [1] | |
| 12 Jan 1962 - 9 Dec 1962 | Elizabeth II |
- The royal style and titles were changed in accordance with a proclamation issued by command of the Queen on 16 Dec 1961 (effective on publication in the Tanganyika Gazette, No. 3, 12 Jan 1962, Supplement, p. 15).