Langlade County Airport (ICAO: KAIG, FAA LID: AIG) is a county-owned public-use airport located two nautical miles (4 km) northeast of the central business district of Antigo, a city in Langlade County, Wisconsin, United States.

The facility was used by the United States Army Air Forces as a contract glider training airfield, known as Antigo Airport.

Langlade County Airport covers an area of 440 acres (180 ha) at an elevation of 1,523 feet (464 m) above mean sea level.

For the 12-month period ending August 10, 2023, the airport had 8,250 aircraft operations, an average of 23 per day: roughly 97% general aviation, 2% air taxi and 1% military.

In March 2008, the Governor of Wisconsin approved plans to construct a new T-hangar for nearly $400,000 with the Federal Aviation Administration providing the bulk of the funding.