Kapuas Hulu (Upper Kapuas River) is a regency (kabupaten) of West Kalimantan, Indonesia. The region is the home to a diversity of indigenous groups, including the Iban and the Silat. Towns along the Kapuas River include Sintang, Nanga Lebang, Nanga Ketungau, Nanga Silat, Semitau, Nanga Bunut, and Putussibau. The population of the regency was 221,952 at the 2010 Census.