| Tower of l'Osse | |
| Native Name: | Torra di Losso |
| Native Language: | Corsican |
| Designation1: | Monument historique |
| Designation1 Date: | 17 December 1926 |
| Built: | 1599 |
| Coordinates: | 42.8611°N 9.4808°W |
| Map Relief: | yes |
The Tower of l'Osse or Tower of Losso (Corsican: Torra di Losso) is a Genoese tower located in the commune of Cagnano (Haute-Corse) on the Corsica. The tower lies on the east coast of Cap Corse.
The construction of the tower was begun in March 1599. It was one of a series of coastal defences constructed by the Republic of Genoa between 1530 and 1620 to stem the attacks by Barbary pirates.[1] In 1926 the tower was listed as one of the official historical monuments of France. The date of construction given in the database (1520) is incorrect.