Clarent-Salluste-Hermycle Duval (February 1852 – July 1917) was a Canadian doctor of medicine, inventor, engineer, organist, musician and professor of Mathematics & Mechanics at Université Laval and at the École Polytechnique de Montréal. Duval is primarily known for his improvements to the organ.
Born in Saint-Jean-Port-Joli, Canada East, Duval was the son of Louis-Zepirin Duval, the Notary of the Seigneur in Saint-Jean-Port-Joli, and nephew to Eleonore Verreai, who was the daughter of another notary; Germain-Alexandre Verreau. Throughout Duval's early life he was inspired by his mother's career as an educator, finding himself interested in science, physics, mechanics, and music. Duval was claimed to be a tinkerer as a child and later became an inventor and engineer.