Ottawa International Animation Festival
- Country: Canada
- Genre: Anime
- Website: www.animationfestival.ca
- Update: 05-02
Ottawa International Animation Festival (Ottawa International Animation Festival; OIAF for short) is the largest animation festival in North America, which was started in 1976, initially held every two years, and then changed to be held annually since 2005. The Ottawa International Animation Festival is one of the animation film festivals accredited by the International Animated Film Association.