Willy David Frédéric Sagnol (born 18 March 1977) is a French former professional footballer who played as a defender.
Sagnol spent much of his professional career playing for Bayern Munich in Germany's Bundesliga.
He was also part of the French squad at the 1997 FIFA World Youth Championship, 2002 FIFA World Cup, UEFA Euro 2004, 2006 FIFA World Cup and UEFA Euro 2008.