Avi is a masculine given name.
Avi or AVI may also refer to:
- Avi (author), pen name of children's author Edward Irving Wortis
- Zee Avi, Malaysian singer-songwriter, guitarist, and ukulele player born Izyan Alirahman in 1985
- .avi (Audio Video Interleave)
- .avi (album), second studio album by Serbian experimental band Consecration
- Avi, Iran, a village in Zanjan Province
- AVI BioPharma, a biopharmaceutical company
- AVI Records, an American independent record label
- Avi Resort & Casino, Nevada, United States
- American Virgin Islands
- Judged by Your Work Party (Asa Vita no Ifampitsarana, Akaiky ny Vahoaka Indrindra)
- Automatic Vehicle Identification
- Arkansas Valley Interurban Railway
- Australian Volunteers International
- Regional State Administrative Agency (), the former regional organs of the state of Finland
- An abbreviation of Avatar (computing)