Gustave Tritant (1837-1907) was a lesser-known French organist and composer, active in the second half of the 19th century. Born in Mesneux, just south-west of Reims, he was a student in Reims, and evidently played the organ(s) at Reims Cathedral, and at the Basilica Saint-Remi in the same city. There followed several stints as organist or maître-de-chapelle at the cathedral in Châlons; Saint-Eustache, Saint-Augustin, and Saint-Pierre-du-Gros-Caillou in Paris; and in Pamiers in southern France. But it seems that most of his career was spent in Rethel, a commune north-east of Reims, where he was an organist, and a college professor. Besides some piano music, and choral music (both sacred and secular), his magnum opus was a 13-volume collection of church music for organ or harmonium, entitled “L’Office Pratique de l’Organiste,” published by Enoch in Paris over ten years, 1879-1889.