Frederick Douglass Greater Rochester International Airport is a public airport located within the City of Rochester, three miles (4.8 km) southwest of Downtown, in Monroe County, New York, United States. It is owned and operated by Monroe County. The airport is home to the 642nd Aviation Support Battalion, part of the 42nd Infantry Division.

Monroe County is a county in the U.S. state of New York, located along Lake Ontario's southern shore. As of 2022, the population was 752,035, according to Census Bureau estimates. Its county seat and largest city is Rochester. The county is named after James Monroe, the fifth president of the United States. Monroe County is part of the Rochester, NY Metropolitan Statistical Area. The county is part of the Finger Lakes region of the state.