Marie Annequin (born 19 February 1992) is a French competitor in synchronized swimming who competed in the 2013 World Aquatics Championships.

[2] She is preparing a technician certificate (BTS) Design d'espace remotely.

[2] Annequin is a synchronized swimmer, starting in the sport when she was eleven years old in the team of Chassieu Natation.

[2] Annequin represented France in free routine combination events.

At the 2013 World Aquatics Championships, the team finished 8th scoring 43,380 in the technical merit, 43,440 in the artistic impression.