Heaviest jack o'lantern
Travis Gienger, Mike Rudolph
1,161.2 kilogram(s)
United States (Anoka)

The heaviest jack o'lantern was carved from a pumpkin that weighed 2,560 pounds (1,161.2 kilograms), as confirmed at the 49th Safeway World Championship Pumpkin Weigh-Off held in Half Moon Bay, California, USA, on 10 October 2022. Grown by Travis Gienger (USA), the gigantic gourd, nicknamed "Maverick", was transported back to his hometown of Anoka, Minnesota (the self-described "Halloween Capital of the World"), where he enlisted friend and experienced pumpkin carver Mike Rudolph (USA) to transform it into an eagle-shaped jack o'lantern on 28 October 2022 for the town's All Hallows Eve celebrations.

Gienger and Rudolph bettered their own record having carved a jack o'lantern from a 2,350-lb (1,065.9-kg) pumpkin grown by Gienger in 2020. That one was tiger themed, as a nod to the Netflix series Tiger King.

"Maverick" is the heaviest ever pumpkin grown in North America as confirmed by the Great Pumpkin Commonwealth. It was grown from an 1885.5 Werner mother seed. With a girth of 242 in (614.7 cm) from stem to blossom, this is also the largest jack o'lantern by circumference. Its OTT (over the top) measurement was 509 in (1,292.9 cm); the OTT combines the circumference with an end-to-end length and a side-to-side width.

The heaviest pumpkin overall to have been assessed in competition weighed 1,226 kg (2,702 lb 13.9 oz) was grown by Stefano Cutrupi (Italy) from Radda in Chianti, Tuscany, Italy, as ratified at the Campionato della Zuccone festival held in Peccioli, Italy, on 26 September 2021.