Coles County Memorial Airport (IATA: MTO, ICAO: KMTO, FAA LID: MTO) is a public use airport between Mattoon and Charleston in Coles County, Illinois. Owned by the Coles County Airport Authority, it is five miles east of Mattoon and six miles west of Charleston. The National Plan of Integrated Airport Systems for 2011–2015 called it a general aviation facility.

The airport hosts an air show featuring aerial performances and static display as well as helicopter and monster truck rides. The show is free but accepts donations from visitors.

The airport has a close relationship with the Civil Air Patrol. It helps students learn how to fly through a relationship with the johnson Flight Academy.