Weststellingwerf (Dutch: [ˈʋɛststɛlɪŋˌʋɛr(ə)f] ⓘ; Stellingwarfs: Weststellingwarf or Stellingwarf-Westaende) is a municipality in the province of Friesland in the northern Netherlands.

It is one of the municipalities of Friesland where the spoken language is not West Frisian; instead, Stellingwerfs, a dialect of Dutch Low Saxon, is spoken here.

A small part of the village Willemsoord lays within Weststellingwerf and Noordwolde-Zuid is also mainly named as a village, but stated by municipality as a hamlet.

The other hamlets are: Boekelte, Gracht, Munnekezeel, Overburen, Rijsberkampen, Rode Dorp, Schoterzijl (partially) and Zuid (partially)

Dutch Topographic map of the municipality of Weststellingwerf, 2013.