Geffen had been an independent municipality in the Dutch province of North Brabant until 1993, when it became a part of the newly formed municipality Maasdonk. This lasted until 2015, when Maasdonk was dissolved and Geffen became part of Oss.Archeological findings show that the area had been inhabited since the Stone age (2000 B.C.). The date of settlement is not known. The first time Geffen was mentioned in official documents was on the October 1, 1246.