Bengt Carl Gustaf Westerberg (born 23 August 1943, in Södertälje, Stockholm County, Sweden) is a Swedish politician. He was leader of the Liberal People's Party from 1983 to 1995, member of the Riksdag from 1984 to 1994 and Minister for Social Affairs and Deputy Prime Minister 1991 to 1994.He is the son of Carl-Erik Westerberg and his wife Barbro (maiden name Wahlström).