John Bannister was an American surveyor, businessman, and Wisconsin pioneer. He was one of the first settlers at what is now Fond du Lac, Wisconsin, and was the 7th mayor of Fond du Lac. He was also the second postmaster at Fond du Lac and the first register of deeds for Fond du Lac County, and he served at various times as chairman of the county board, probate judge, and justice of the peace.