Marpingen is a municipality in the district of Sankt Wendel, in Saarland, Germany. It is situated approximately 8 km west of Sankt Wendel, and 25 km north of Saarbrücken.
The municipality contains the urban areas Marpingen, Urexweiler, Alsweiler und Berschweiler, which have the status of Ortschaft, and Rheinstraße, which is in the administrative area of Marpingen, und Habenichts, which is in the administrative area of Urexweiler.