Jacques Berthelet (24 October 1934 – 25 January 2019) was a Canadian Roman Catholic bishop.
Berthelet was born in Canada and was ordained to the priesthood in 1962.
He served as titular bishop of Lamsorti and as auxiliary bishop of the Roman Catholic Diocese of Saint-Jean-Longueuil, Canada, from 1986 to 1996 and then as bishop of the diocese from 1996 to 2010.