Myriam Lignot (born 9 July 1975 in Laon, Aisne) is a French synchronized swimmer and Olympic medalist. She won a bronze medal at the 2000 Summer Olympics in Sydney, in duet together with Virginie Dedieu, and placed fourth in the team competition. Lignot retired after the Sydney 2000 Games at the age of 23. Few years later, she became coach of Pays d'Aix Natation synchronized swimming club.