John Thomas Cox (21 December 1877 – 11 November 1955) was an English international footballer who played for Liverpool in the late 19th and early 20th centuries, in between spells at Blackpool.

Born in Liverpool, Lancashire (now Merseyside), Cox played for South Shore Standard, South Shore, and Blackpool before being signed by Liverpool managers John McKenna and William Barclay in February 1898 for the then-large sum of £150, enabling the Lancashire club to announce a loss of "only" £441 for the season, as opposed to over £1,000 for the previous campaign.

It was this kind of form that caught the eye of the FA, who selected Cox for the British Home Championship match against Ireland at The Dell, Southampton on 9 March 1901.

Cox was also a top crown green bowler after his football career finished, he won the game's biggest tournaments, the Talbot and Waterloo in 1925, the first and so far the only person to do so in the same year.

Cox's younger brother, Bill, was also a footballer and died of wounds suffered while serving during the First World War.