Ulen may refer to: People Thomas Ulen, an American law and economics professor Places Norway Ulen (lake), a lake in the municipality of Lierne in Trøndelag county United States Ulen, Indiana, a town in Center Township, Boone County, Indiana Ulen Historic District, a national historic district located at Ulen, Boone County, Indiana Ulen, Minnesota, a small city in Clay County, Minnesota Ulen Township, Clay County, Minnesota, a township in Clay County, Minnesota Other Upuh Ulen-Ulen, a traditional cloth of the Gayonese people in Aceh (Indonesia). See also Ulen sword