Simmern-Rheinböllen is a Verbandsgemeinde ("collective municipality") in the Rhein-Hunsrück-Kreis, Rhineland-Palatinate, Germany. The seat of the Verbandsgemeinde is in Simmern. It was formed on 1 January 2020 by the merger of the former Verbandsgemeinden Simmern and Rheinböllen.
The Verbandsgemeinde Simmern-Rheinböllen consists of the following Ortsgemeinden ("local municipalities"):
- Altweidelbach
- Argenthal
- Belgweiler
- Benzweiler
- Bergenhausen
- Biebern
- Bubach
- Budenbach
- Dichtelbach
- Ellern
- Erbach
- Fronhofen
- Holzbach
- Horn
- Keidelheim
- Kisselbach
- Klosterkumbd
- Külz
- Kümbdchen
- Laubach
- Liebshausen
- Mengerschied
- Mörschbach
- Mutterschied
- Nannhausen
- Neuerkirch
- Niederkumbd
- Ohlweiler
- Oppertshausen
- Pleizenhausen
- Ravengiersburg
- Rayerschied
- Reich
- Rheinböllen
- Riegenroth
- Riesweiler
- Sargenroth
- Schnorbach
- Schönborn
- Simmern
- Steinbach
- Tiefenbach
- Wahlbach
- Wüschheim