A harvest festival is an annual celebration that occurs around the time of the main harvest of a given region. "Harvest festival" or "Harvest Festival" may also refer to:
- Harvest Festival (United Kingdom)
- Thanksgiving, harvest festival in the United States
- Harvest Festival (Taiwan)
- Ami’s Harvest Festival, celebrated by Ami ethnic group in Taiwan
- Harvest Festival (Parks and Recreation), an episode of Parks and Recreation
- Aktion Erntefest ("Operation Harvest Festival"), Nazi murder of 43,000 Jews on 2–3 November 1943