Marie Jeanne Clemens (née Crévoisier, 16 November 1755 – 20 March 1791) was a French-Danish artist; engraver and pastell painter.
She was the daughter of the clock maker Claude Joseph Crévoisier and Marie Thérèse Blot in Paris. From 1773 she was the student and from 1781 the spouse of the Danish artist Johan Frederik Clemens, with whom she moved to Denmark. In 1788, she moved to Berlin, where she died of consumption. She was inducted as an agrée to the Danish Academy of Fine Arts in 1782. She was also a member of the Berlin Academy.