Wittman Regional Airport is a county-owned public-use airport located two nautical miles (4 km) south of the central business district of Oshkosh, a city in Winnebago County, Wisconsin, United States. A large portion at the south end of the airport is located in the town of Nekimi. It is located adjacent to Pioneer Airport, part of the EAA Aviation Museum.

Oshkosh is a city in and the county seat of Winnebago County, Wisconsin, United States. The city had a population of 66,816 in 2020, making it the ninth-most populous city in Wisconsin. It is also adjacent to the much less populous Town of Oshkosh in the north.