Griesheim Airport (IATA: ZCS, ICAO: EDES) is a private airfield in Germany, located 1-mile (1.6 km) southwest of Griesheim (Hessen); approximately 270 miles (430 km) southwest of Berlin.

Formerly a NATO military airfield, it was closed in 1992. In 1996, a large part of the airfield site was placed under the control of Technische Universität Darmstadt, where a variety of disciplines carry out experiments and operate several small aircraft.

Griesheim was originally part of an Imperial German Army (Reichsheer) military artillery firing range in 1874, an airfield was established on the site in 1908, being Germany's first airfield and flight school. During World War I it was used as a Prisoner of War Camp. Re-established as an airfield in 1930, the German Research Institute for Gliding was established on the site. After 1939, the Luftwaffe established a military presence at the airfield, and after World War II, it was a United States Army Airfield (Darmstadt Army Airfield) until the end of the Cold War, jointly used in the late 1980s as civil airport for light aircraft and sailplanes (Griesheim Airport).

In 1874, the area south of Griesheim was established as a German Army artillery firing range. In 1908, August Euler recognized the suitability of the site as an airfield, and conducted the first glider flights at the location of the current airfield in December 1908. Afterward, he presented to the German government a request to lease a portion of the site (380 acres) for use as an airfield. Early in 1909 the lease was completed. In February, Euler erected a building on the site, which he relocated from Mainz castle, costing him 2,400 Marks. In that building he began aircraft production. On 31 December 1909, he earned the first civil pilot's license in Germany. Between 1909 and 1911 in Griesheim Euler trained 74 pilots. The most famous student pilot was Prince Henry of Prussia, the brother of the German Emperor, Wilhelm II.

In 1913 the airfield was designated "Flying station Darmstadt-Griesheim" and was taken over by the German Army. During World War I, the airfield was turned into a Prisoner of War Camp, eventually holding over 15,000 soldiers. At the end of the war, the Treaty of Versailles prohibited German military flying, and the French Army moved into the area for occupation duty. The occupying force remained until 1930 when the French military withdrew.

After the withdrawal of the French in June 1930 the airfield was re-established. In April 1932 the city of Darmstadt, leased the approximately 70-acre (28 ha) airfield for their new airport. In May 1933 the German Research Institute for Gliding (DFS) moved their institution into the barracks at the airport formerly used by the French.

The DFS was a civilian facility. During the 1930s its mission was primarily to research gliders and their uses. The Institute established research facility hangars, workshops, and in 1936 a wind tunnel, which is used today by the Technische Universität Darmstadt. Up to 780 employees were employed at the DFS, including the staff of the Engineering School of Aeronautical Engineering (IfL). By October 1937, the entire facility along with the airfield had expanded to about 800 hectares.

When World War II broke out in 1939, DFS was moved north to Braunschweig in Lower Saxony and then to Ainring in Upper Bavaria. The German Air Force (Luftwaffe) then established itself at the airfield. During its use by the Luftwaffe, the airport was known as "Fliegerhorst Darmstadt-Griesheim", and was generally used by Fighter units.