Lyle Stuart Kristiansen (born 9 May 1939 in Vancouver, British Columbia, died 18 June 2015) was a New Democratic Party member of the House of Commons of Canada. He was an executive secretary, financial secretary and woodworker by career. His first two attempts at a House of Commons seat from British Columbia were unsuccessful. He first campaigned federally in the 1965 federal election at Vancouver Centre electoral district. He would not run again until the 1979 federal election at Kootenay West.