Emmanuel Laurent Petit (French pronunciation: ; born 22 September 1970) is a French former footballer who played at club level for Monaco, Arsenal, Barcelona and Chelsea as a midfielder. He represented France at international level in two FIFA World Cups and two UEFA European Championships; he scored the third goal in France's 3–0 victory in the 1998 FIFA World Cup Final and was also a member of the French squad that won UEFA Euro 2000.
Born in Dieppe, Petit began his career at minor club ES Arques-la-Bataille before being signed by Arsène Wenger's Monaco side at the age of 18. He made his debut soon after and played in the 1989 Coupe de France final. Petit became a regular at Monaco, playing as a left-sided or central midfielder. In 1991, he won the Coupe de France with Monaco and also played in the 1992 European Cup Winners' Cup final (which Monaco lost to Werder Bremen). In 1996–97, his final season at Monaco, he captained his side to the Ligue 1 title.