Maurice Lemaître (born April 23rd 1926 in Paris) is an artist, writer and French poet. He is known to be one of the main figures of lettrisme, a movement started in the 1950s.

Lemaître was educated at the School of Arts and Crafts and Public Works. After taking part in the Liberation of Paris, he began his philosophy degree at the Sorbonne.

In 1948, he began his career as a journalist and wrote for the newspaper of the libertarian movement. A year later, he met Isidore Isou and immediately became interested in his political and avant-garde thoughts.

In 1950, Lemaître becomes very invested in the Lettrist group and created in the same year the "Youth Front", a political journal; while simultaneously creating a literary and pictorial magazine, entitled "Ur," which remains as "The Minotaur" of lettrism. Since his literary creations, Lemaître has continued to develop various fields within the Lettrist movement: poetry, theater, dance, novel, painting, photography, film, economy, psychopathology and psychotherapy . Despite his dedication to the movement, since 2000, Lemaître distanced himself from the movement and is now relatively isolated from the main group.