Loenen is a town in the Dutch province of Utrecht. It was the main town in the former municipality of Loenen. Since 2011 it has made part of the new formed municipality of Stichtse Vecht. It lies about 10 km west of Hilversum.
In 2001, the village of Loenen aan de Vecht had 3234 inhabitants. The built-up area of the town was 0.59 km², and contained 1328 residences.