William Phelan (16 July 1915 – 22 December 1973) was an Australian politician.
He was born in Maryborough to ironmonger Sydney Clifford Phelan and Letitia Ellen Chellew.
He attended the local high school and on 22 October 1938 married Hazel Patten, with whom he had four children.
He worked in the family firm and in 1939 succeeded his father as managing director.
From 1944 to 1961 he served on Maryborough Council, with a term as mayor from 1954 to 1955.