Jean-Marie Cadieu (born 16 October 1963 in Tulle) is a former French rugby union player. He played as a lock.
|Date of birth||16 October 1963|
|Place of birth||Tulle, France|
|Height||1.93 m (6 ft 4 in)|
|Weight||102 kg (16 st 1 lb)|
|Rugby union career|
Cadieu played for Stade Toulousain from 1982/83 to 1992/93, where he won 3 titles of the French Championship, in 1984/85, 1985/86 and 1988/89, and a Cup of France, in 1983/84. He then moved to RC Narbonne, where he developed from 1993/94 to 2005/06, when he finished his career.