Magni may refer to:
- Magni Ásgeirsson, an Icelandic singer/musician and a contestant in the CBS show Rock Star: Supernova
- Magnicharters, a short word for an airline company.
- Móði and Magni, the sons of Thor and Jarnaxa in Norse mythology
- Fiorenzo Magni (1920-2012), Italian bicycle racer
- Luigi Magni, Italian screenwriter
- Pietro Magni (disambiguation), various people named Pietro Magni