William Lee (born 2 December 1941) is the Catholic bishop of the Diocese of Waterford and Lismore in Ireland.
Lee was born in Newport, County Tipperary. He is the eldest of the five children of John and Delia Lee, who ran a public house and auctioneering business in the town.
Lee received his early education at the local Convent of Mercy and Boys' National Schools and later went to Rockwell College. He studied for the priesthood at St Patrick's College, Maynooth and was ordained for the priesthood in the Diocese of Cashel and Emly on 19 June 1966. Lee studied in canon law at Maynooth, where he received a doctorate in 1969. He then served for two years in the large parish of Finglas West, Dublin. He also studied for a time at the Pontifical Gregorian University, Rome.