Richard Castel (born 31 December 1972, in Vendres) is a former French rugby union player.
He played as a Flanker.
Castel played for Stade Toulousain from 1982/83 to 1992/93, where won 2 titles of the French Championship, in 1994/95 and 1995/96 and a Heineken Cup, in 1995/96.