Lega may refer to:
- Legha (clan), clan of Jats in India
- Lega, Warmian-Masurian Voivodeship, town in north Poland
- Lega people, an ethnic group in the Congo
- Lega language, the language of the Lega people
- Lega Nord, political movement to bisect Italy
- Lega dei Ticinesi, political party in the Italian speaking part of Switzerland
- Lega River in Poland
- La Lega (song), Italian workers' song
- Mario Lega, Italian motorcyclist
- Michele Lega, cardinal
- An earlier name for Street, Somerset
- Silvestro Lega, Italian painter