Diona may refer to:
People with the given name edit
- Diona Doherty (born 1989), Irish actress
- Diona Reasonover (born 1992), American actress
Places edit
- Diona, Mali, a village and the seat of Korarou, Mali
- Diona, Illinois, an unincorporated community in Coles County, Illinois, United States
Fictional characters edit
- Diona, a character in Genshin Impact