Teseo Tesei
| Teseo Tesei | |
|---|---|
| Born | 3 January 1909 Elba, Italy | 
| Died | 26 July 1941 (aged 32) Malta | 
| Allegiance | Italy | 
| Branch | Regia Marina (Italian Royal Navy) | 
| Years of service | 1929–1941 | 
| Rank | Major | 
| Unit | Decima Flottiglia MAS | 
| Battles / wars | World War II | 
| Awards | Gold Medal for Military Honor (posthumous) | 
Teseo Tesei (3 January 1909 – 26 July 1941) was an Italian naval officer, who invented the human torpedo (called Maiale, Italian for "pig") used by the Regia Marina during World War II.