William Matthew O'Halloran (18 June 1934 – 13 December 1994) was an Australian cricketer. He played six first-class cricket matches for Victoria between 1962 and 1964.
The son of Tom O'Halloran, and the (later) Mrs. C.S. Hayes, William Matthew O'Halloran was born at Corowa, in New South Wales on 18 June 1934.
He married Joan Beverley Rowland (1936âÂÂ2021) in 1957.
He attended Caulfield Grammar School from 1950 to 1953, where he excelled as both a cricketer and as a footballer.
He later returned to the school as a member of staff: teaching there from 1958 to 1959, and from 1963 to 1966.
He attended the University of Melbourne from 1954 to 1956. He graduated Bachelor of Commerce (B.Comm) on 20 March 1957.
He played amateur football for Old Caulfield Grammarians in the Victorian Amateur Football Association (VAFA) over many seasons; and was named as an interchange in the club's "Team of the Century".
In December 1956 he played for Melbourne University against Adelaide University, taking 6/41.
A left-hand bat, and a right arm medium-pace bowler, he played in 218 First XI District Cricket matches, with St Kilda (192 games) and University (26 games) over 21 seasons 1953/54 to 1973/74 scoring 5,368 runs (av. 30.32) and taking 312 wickets (at 17.34).
He also played in six representative matches for Victoria, scoring 115 runs (av. 12.77) and taking 4 wickets (at 50.50) in one of those matches taking 2/26 over two consecutive cricket seasons: 1962/1963, and 1963/1964.