Eric Marcus Municipal Airport (FAA LID: P01) is a county-owned, public-use airport in Pima County, Arizona, United States. It is located 5.75 miles (5.00 nmi; 9.25 km) north of the central business district of Ajo and is about 82 miles (71 nmi; 132 km) southwest of Phoenix. The airport was renamed on February 11, 2006; it was formerly known as Ajo Municipal Airport.

The airport is included in the FAA's National Plan of Integrated Airport Systems for 2009–2013, which categorizes it as a general aviation facility.