John Dyson (born 11 June 1954, Kogarah, New South Wales) is a former international cricketer (batsman) who is now a cricket coach, most recently in charge of the West Indies.
He played 30 Test matches and 29 ODIs for Australia from 1977 to 1984. He did not enjoy as much success at the international level as he did at the first class level. In first-class matches, he scored nearly 10,000 runs at an average of 40.
He is probably best remembered for his "catch of the century" at the SCG, West Indies v Australia, 5 January 1982 when he caught Sylvester Clarke in the outfield, over his head, at a 45-degree angle to the ground, running backwards.
Dyson participated in two "rebel tours" of South Africa in 1985-86 and 1986–87, scoring over 1,000 runs.
He played soccer as a goalkeeper in the Sutherland Shire (Cronulla RSL) and was a member of the side that won the Dallimore Competition and runners-up in the NSW Amateur Cup final.
On 21 October 2007 he was named as coach of the West Indies having previously coached Sri Lanka from 2003 to 2005.
On 20 March 2009 he incorrectly called the West Indies in because of bad light after 46.2 overs over of an ODI against England. His decision to do so was based on a faulty D/L calculation because of a fall of wicket on the second ball of the 47th over, thereby causing his team to lose a match it had a good chance of winning.
He was sacked as the coach of the West Indies on 13 August 2009 shortly before the team was due to play in the ICC Champions Trophy in South Africa.