Tater Day is a large festival in Benton, Kentucky.
It was started in 1843 as a celebration of spring, and a time when all of the townsfolk would get together and trade in sweet potato slips, used to grow the plants. It is also the oldest continuous trade day in the United States, in which goods such as guns, 'coon hounds, tobacco or livestock are swapped or sold. Tater Day brings to town carnival rides, games, a market, a potato eating contest, mule pulls, and a "biggest potato" contest, which attracts large potatoes from across the county. The biggest part of the festival is the parade, which completes one circuit around the town. It includes political floats, Marshall County High School marching band, horses and buggies, clowns, vintage cars, horses, Miss Tater Day, and other things for which Marshall County is known. There is also Junior Miss Tater Day for little girls ages 5 to 12, and Little Mister, Tiny Miss, and Baby Miss Tater day pageants and floats for the younger kids.