Flag of Tanganyika Territory
| Use | Civil ensign |
|---|---|
| Adopted | 1923 |
| Relinquished | 1961 |
| Government ensign of Tanganyika | |
| Use | State ensign |
| Adopted | 1923 |
| Relinquished | 1961 |
| Flag of the governor of Tanganyika | |
| Use | Other |
| Adopted | 1923 |
| Relinquished | 1961 |
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The flag of Tanganyika, used between 1923 and 1961, was a British Red Ensign with a giraffe head in a white disk. It was used as the flag of Tanganyika Territory while under British Empire administration as a League of Nations mandate and later United Nations trust territory.