|Full name||Willy Grondin|
|Date of birth||October 12, 1974|
|Place of birth||Saint-Clothilde, Réunion, France|
|Height||1.76 m (5 ft 9 1⁄2 in)|
|2004–2005||Le Mans UC72||14||(0)|
|* Senior club appearances and goals counted for the domestic league only.
Grondin's years with Nantes were his longest spent with any club. He played the position of goalkeeper. Through 1998–2004 he helped his club stay in the French First Division (also winning two national cups in 1999 and 2000 and one championship in 2001). Internationally, he played his 2000–2002 seasons in the Division 1, and also took part in the UEFA Champions League for FC Nantes.
Grondin played for the Valenciennes Football Club in France, and has helped them to win the French Second Division, hence earning Valenciennes FC entrance to the French First Division, which they have been denied from for more than a decade. In the 2006–07 season, Grondin was moved to second choice goalkeeper, replaced by Nicolas Penneteau.
After terminating his contract with Valenciennes on 9 July 2009, the goalkeeper signed a one-year deal with Paris Saint-Germain F.C.