When she was six months old, her parents, Michel and Michèle, moved the family to La Grande-Motte in Southern France.

She later moved to Paris to begin her career, where she worked to lose her southern French accent.

[2] Her sister, Audrey Lamy, is also an actress and currently stars in the French sitcom Scènes de ménage.

[7] Lamy started dating her Un gars, une fille costar Jean Dujardin in 2003.

[8] She was previously in a relationship with actor Thomas Jouannet from 1995 to 2003, with whom she had a daughter, Chloé, born in October 1997.