Lucius D. Clay Kaserne (German: Flugplatz Wiesbaden-Erbenheim) (IATA: WIE, ICAO: ETOU), commonly known as Clay Kaserne, formerly known as Wiesbaden Air Base and later as Wiesbaden Army Airfield, is an installation of the United States Army in Hesse, Germany. The kaserne is located within Wiesbaden-Erbenheim. Named for General Lucius D. Clay, it is the home of the Army's 2d Theater Signal Brigade, 66th Military Intelligence Brigade and is the headquarters of the U.S. Army Europe and Africa (USAREUR-AF).

The USAREUR oversees the 7th Army Training Command, 10th Army Air & Missile Defense Command and 21st Theater Sustainment Command. Clay Kaserne also maintains an airfield.