Gray Army Airfield, also known as Gray AAF, is a military airfield located within Joint Base Lewis–McChord near Tacoma, in Pierce County, Washington, United States.

Joint Base Lewis–McChord (JBLM) is a U.S. military installation home to I Corps and 62nd Airlift Wing located 9.1 miles (14.6 km) south-southwest of Tacoma, Washington under the jurisdiction of the United States Army Joint Base Headquarters, Joint Base Lewis–McChord. The facility is an amalgamation of the United States Army's Fort Lewis and the United States Air Force's McChord Air Force Base which merged on 1 February 2010 into a Joint Base as a result of Base Realignment and Closure Commission recommendations of 2005.