William Kenneally (1899 – 13 September 1964) was an Irish politician. A native of Curradara, Villierstown, County Waterford, he was first elected to Dáil Éireann as a Fianna Fáil Teachta Dála (TD) at the Waterford by-election held on 26 June 1952 which caused by the death of Bridget Redmond of Fine Gael. He was re-elected for the Waterford constituency at the 1954 and 1957 general elections. He lost his seat at the 1961 general election.
His son Billy Kenneally also served as a TD for Waterford from 1965 to 1982 and his grandson Brendan Kenneally is a former TD for Waterford.