Édouard Henri Devernay Jnr. (8 November 1889 – 5 July 1952) was a French musician, composer and organist who held the position of organiste titulaire of the great organ of Notre-Dame-des-Victoires in Trouville-sur-Mer, Calvados, Normandy.
Born in Roubaix, Devernay was the son of Édouard Joseph (8 April 1854 in Roubaix – 13 May 1906 ibid.) and Hortense-Coralie Devernay (née Lefebvre; 14 November 1857 in Roubaix). He began his musical studies at the Roubaix conservatoire where he obtained the First Prizes in solfège, piano, harmony and counterpoint in the class of Julien Koszul. He then joined the organ class of the Royal Conservatory of Brussels.
In 1912, the village of Trouville-sur-Mer opened auditions for the position of titular organist of the Notre-Dame-des-Victoires church; and he was appointed. He then came to settle in Normandy.
Wounded at Verdun during World War I, he composed his first symphony for organ: Marche pour la Victoire during his convalescence.
In 1931, he won the First Prize in musical composition of the SACEM for a lyrical drama, Au temps du bon Roy Henri.
He died in Trouville on 5 July 1952.
He was the uncle of Yves Devernay.