Nieder-Olm is a town located in the Mainz-Bingen district of Rhineland-Palatinate, Germany. It serves as a regional middle centre and remains the seat of the Verbandsgemeinde of Nieder-Olm.
The settlement was officially elevated to town status on November 5, 2006. Prior to this date, it functioned as an Ortsgemeinde, which is a type of municipality belonging to a collective municipality in Germany.