Rijnmond () (literally Rhine Mouth, Mouth of the Rhine, Rhine Estuary) is the conurbation surrounding the city of Rotterdam in the Netherlands. Another term used in this context is Stadsregio Rotterdam (literally Rotterdam Urban Region or more conventionally Greater Rotterdam Area). Located on the Rhine–Meuse–Scheldt delta, the region has a combined population of 1, 181, 289 as of 2021.
The term Rijnmond is used in the security region Rotterdam-Rijnmond, it exists out of the following municipalities: Albrandswaard, Barendrecht, Brielle, Capelle aan den IJssel, Goeree-Overflakkee, Hellevoetsluis, Krimpen aan den IJssel, Lansingerland, Maassluis, Nissewaard, Ridderkerk, Rotterdam, Schiedam, Vlaardingen en Westvoorne.