John Kessack Ogston (15 January 1939 - 16 August 2017) was a Scottish professional footballer, who played as a goalkeeper for Aberdeen, Liverpool and Doncaster Rovers.
Ogston was born in Aberdeen and played youth football with Banks O' Dee where he won the Scottish Junior Cup in 1957. A year later in 1958, he started his professional career with Aberdeen. He was fondly known as "Tubby" in his time there.
He joined English club Liverpool for a fee of £10,000 in September 1965, but his only first team appearance was in a 3-1 League victory over Newcastle United on 7 April 1967.
He moved to Doncaster Rovers in 1968 on loan, and then signed permanently the following season. Whilst at Doncaster, he was a member of the Fourth Division title winning side of 1968–69, and made a total of 77 appearances in League and cup.
In 1971, he returned north of the border to play for Buckie Thistle for a season, before playing with several teams in the Highland League, including Huntly, Rothes, Fraserburgh, and Deveronvale. He finally retired on 16 September 1974.