Marie-Anne Desmarest (May 17, 1904 – March 4, 1973) was a French writer.

She was married twice: first to Henri Desmarest and later to Roger Leroy.

Desmarest wrote romance novels.

She died in Issy-les-Moulineaux at the age of 68.

This article about a French novelist born in the 20th century is a stub.