Jean-Yves Veillard (19 February 1939 – 25 March 2020) was a French historian. He was born in Rennes, France. He was one of the Bleimor Scouts. Veillard was the author of a thesis on Rennes during the 19th Century. He was one of the founding members of the Breton Democratic Union in 1964. He was Curator of the Musée de Bretagne from 1967 to 2000, and opened the exhibition on Seiz Breur.