William Joseph Smyth AO (8 July 1916 – 16 September 2007) was an Australian Test cricket umpire.
Smyth stood (again with Egar) in the first Test match played by Pakistan in Australia, at Melbourne on 4 December to 8 December 1964, a match drawn when Australia required only 78 further runs with 8 wickets in hand.
Smyth's last Test match, also against England at Melbourne with Egar as his colleague, took place exactly three years after his first, on 30 December 1965 to 4 January 1966, resulting in a draw.
[2] On retirement, Smyth became a long-term President of the Victorian Cricket Association Umpires' Association, adviser to the panel of VCA umpires, and lecturer on the Laws of Cricket, providing precise explanations of the complex code.
At the time he was the oldest living Test match umpire.