Frédéric Duplus (born 7 April 1990) is a French professional footballer who plays as a right-back.

He made his highly anticipated professional debut in Sochaux's third round 1–0 win over Olympique Marseille in the 2008–09 edition of the Coupe de la Ligue coming on as a substitute playing 11 minutes.

[2] He made his league debut on 29 October 2008 against Olympique Lyonnais, however he was substituted out after only playing 32 minutes.

[3] It was discovered that Duplus had in fact tore ligaments in one of his knees ruling the youngster out of both league and international play for up to six months.

He also played on the France U-19 team making his debut in the opening match of the 2008 Sendaï Cup.