Morvan Lebesque (January 11, 1911 in Nantes, France – 4 July 1970 in Brazil), was the Breton language name of Maurice Lebesque, a Breton nationalist activist and French journalist.
Lebesque was born in Nantes, at the Quai Barbin (now dock Barbusse), and had his secondary education in Clemenceau High School.
In 1930, he was editor-in-chief at the Loire Echo.