A Harvest Festival is an annual celebration which occurs around the time of the main harvest of a given region. Given the differences in climate and crops around the world, harvest festivals can be found at various times throughout the world. Harvests festivals typically feature feasting, both family and public, with foods that are drawn from crops that come to maturity around the time of the festival. Ample food and freedom from the necessity to work in the fields are two central features of harvest festivals: eating, merriment, contests, music and romance are common features of harvest festivals around the world.

In North America, Canada and the US each have their own Thanksgiving celebrations in October and November. Certain religious holidays, such as Sukkot, have their roots in harvest festivals.

In the USA, many churches also bring in food from the garden or farm in order to celebrate the harvest. The festival is set for a specific day and has become a national holiday known as Thanksgiving which falls on the fourth Thursday in November. In both Canada and the USA it has also become a national secular holiday with religious origins, but in Britain it is both a Church festival giving thanks to God for the harvest, and a more secular festival remembered in schools.