Tommaso Duke of Genoa
- Category : 1854-births
- Type : PSE
- Profile : 5/1 - Heretical / Investigator
- Definition : Single
- Incarnation Cross : LAX Masks 1
Italian royal prince, nephew of the King of Sardinia, who on 18 February 1861 became the first King of a united Italy. His cousin and brother-in-law Umberto I and his nephew Victor Emmanuel III became subsequent kings of Italy.
During World War I the king, Victor Emanuel III, assumed the duties of Supreme Commander of the Armed Forces and named the Duke of Genoa as Luogotenente, in which position he managed the civil affairs of the kingdom throughout the war.
In 1883 at Nymphenburg, Bavaria, he was married to Princess Maria Isabella of Bavaria (1863–1924), the eldest daughter of the late Prince Adalbert of Bavaria (1828–1875) and Infanta Amelia Philippina of Spain, Duchess of Bavaria (1834–1905), daughter of the Duke of Cadiz. Their marriage produced five children.
He died on 15 April 1931, aged 77, in Turin, Kingdom of Italy.