Ostfildern is a town in the district of Esslingen in Baden-Württemberg in southern Germany. It is located approximately 8 km southeast of Stuttgart. It was formed in 1975 out of a fusion of the previously separate boroughs of Nellingen (including Parksiedlung), Ruit, Kemnat and Scharnhausen and currently has approximately 37,000 inhabitants.
Ostfildern is situated in the east of the Filder area, a fertile plateau south of Stuttgart. It is bordered to the south by the Körsch river, which flows into the Neckar.
The town of Ostfildern was formed on 1 January 1975 from the fusion of the formerly independent boroughs of Nellingen, Ruit, Kemnat and Scharnhausen.
From 1945-1992 the U.S. Army operated Nellingen Kaserne as a barracks and airfield. The site has since been redeveloped as Scharnhauser Park.
A well-known inhabitant of Ostfildern is Abdul Ahad Momand, who was the first Afghan in space and who got asylum in Germany following the withdrawal of Soviet forces from Afghanistan.