Cleveland Hopkins International Airport is a city-owned international airport in Cleveland, Ohio, United States, and is the primary airport serving Greater Cleveland and Northeast Ohio. It is the largest and busiest airport in the state, as well as the 43rd-busiest airport in the U.S. by passenger numbers. Located in Cleveland's Hopkins neighborhood 9 miles (14 km) southwest of Downtown Cleveland, it is adjacent to the Glenn Research Center, one of NASA's ten major field centers.

The region Northeast Ohio, in the US state of Ohio, in its most expansive usage contains six metropolitan statistical areas: Cleveland–Elyria, Akron, Canton–Massillon, Youngstown–Warren, Mansfield, and Weirton–Steubenville along with eight micropolitan statistical areas. Most of the region is considered either part of the Cleveland–Akron–Canton, OH Combined Statistical Area and media market or the Youngstown–Warren, OH–PA Combined Statistical Area and media market. In all, the region is home to: 4,502,460 residents. It is also a part of the Great Lakes megalopolis, containing over 54 million people. Northeast Ohio also includes most of the area known historically as the Connecticut Western Reserve.