Marie-Alain Couturier, O.P., (15 November 1897 – 9 February 1954) was a French Dominican friar and Catholic priest, who gained fame as a designer of stained glass windows. He was noted for his modern inspiration in the field of Sacred art.
He was born Pierre-Charles-Marie Couturier at Montbrison, Loire, France, on 15 November 1897. Couturier served as a soldier during the First World War, in the course of which he was wounded in the foot. After the war, he became an art student at the Paris Académie de la Grande Chaumière. Starting in 1920, he spent five years working at the Studio of the Sacred Arts (French: Atelier des Sacrés Arts).
In 1925, he expressed an interest in religious life and began to seek an Order which he might join. He was accepted by the Dominican friars and entered their novitiate in Amiens on 22 September 1925, at which time he took the name under which he is now known.
From 1926 onward he did his theological studies at the Dominican seminary in Le Saulchoir, Belgium, upon completion of which he was ordained a Catholic priest on 25 July 1930. From 1930 to 1932 he studied at the Pontifical University of St. Thomas Aquinas, Angelicum in Rome under famed Dominican theologian Reginald Garrigou-Lagrange. His studies were frequently interrupted by illness. In 1935 he was assigned to the Saint-Honoré Priory in Paris.