Clyde Sefton

Kevin "Clyde" Sefton (born 20 January 1951) is a former road racing cyclist from Australia, who was a professional rider from 1982 to 1983. He represented his native country at the 1972 Summer Olympics in Munich, West Germany, where he won the silver medal in the men's individual road race, behind the Netherlands' Hennie Kuiper. He also competed at the 1976 Summer Olympics.

He won the Australian national road race title in 1981.