Villamartín de Don Sancho (Spanish pronunciation: [biʎamaɾˈtin de ðon ˈsantʃo]) is a municipality located in the province of León, Castile and León, Spain. According to the 2004 census (INE), the municipality had a population of 180 inhabitants.
42°34′N 5°03′W / 42.567°N 5.050°W / 42.567; -5.050