Kaag en Braassem (Dutch pronunciation: [ˌkaːx ʔɛn ˈbraːsəm]) is a municipality in the western Netherlands, in the province of South Holland.

It was formed on 1 January 2009, through the merger of Alkemade and Jacobswoude.

Kaag en Braassem consists of 10 towns: In addition, there are 5 hamlets:

Dutch topographic map of the municipality of Kaag en Braassem, June 2015