Look up ganna in Wiktionary, the free dictionary.
Ganna may refer to:
- Ganna (name)
- Ganna (cycling team), an Italian professional cycling team, 1913 - 1953
- Ganna (prophet), German prophet and priestess of the 1st century AD
- Ganna, Hungary, village in Hungary
- Caroxylon aphyllum, also known as Ganna, a shrub
- Ganna or Leddat, see Ethiopian Christmas