Coast Guard Air Station Dinner Key, Military hangar in Dinner Key, Miami, United States.

Coast Guard Air Station Dinner Key is a hangar complex beside the former Pan American airport on Dinner Key in Miami, with Mission Revival and modern architectural elements. Its former barracks and mess building were listed on the National Register of Historic Places in 1995, and the hangar itself followed in 2002.

A U.S. Naval Air Station was set up on Dinner Key in 1917 under Lt. Cdr. Marc Mitscher, training seaplane pilots as the country's second largest naval air facility; it closed soon after World War I. Pan Am later built an airport beside the site, and the Navy returned from 1943 to 1945. The Coast Guard ran an air station here from 1932 until 1965, when operations moved to Opa-locka Airport.

The site's name comes from Dinner Key, the island where Pan American built its international airport before the Coast Guard station stood beside it. The former barracks and mess building entered the National Register on August 10, 1995, and the hangar followed on December 19, 2002.

The building sits directly on the waterfront along South Bayshore Drive and is accessible on foot from nearby neighborhoods. You can visit during daylight hours, and parking is available in the surrounding area with easy access to walking paths along the shore.

The barracks and mess building entered the National Register on August 10, 1995, seven years before the hangar followed on December 19, 2002. The two listings cover separate structures of the former station, so the hangar is not the only protected building on the site.