The Pumpkin Fest (Pumpkin Festival) is a yearly celebration held in Keene, New Hampshire at Halloween. Each year, Keene residents and other citizens from around the area attempt to amass the largest number of lit jack-o'-lanterns in one place, trying to meet or beat the world record (which they already hold).

The current record for the most lit jack-o'-lanterns in one place (as recognized by the Guinness World Records) is 28,952 and was set at this celebration on October 25, 2003. The organizers attempt yearly to beat this record by encouraging businesses and individuals to create and donate jack-o'-lanterns which are displayed on many enormous banks of shelves and all available surfaces around the center of town.