Clintonville Municipal Airport (IATA: CLI, ICAO: KCLI, FAA LID: CLI) is located two miles southeast of Clintonville, in Waupaca County, Wisconsin, United States.

The airport covers 533 acres (216 ha) at an elevation of 826 feet (252 m).

[1] In the year ending September 14, 2023 the airport had 11,500 aircraft operations, an average of 32 per day: 93% general aviation and 7% air taxi.

In August 2024, there were 18 aircraft based at this airport: 17 single-engine and 1 multi-engine.

[1] The CLINTONVILLE (CLI) non-directional beacon, 209 kHz, is on the field.