John J. Cox (born 22 May 1962) is a British chess player who holds the title of International Master which he earned in 2005.

Cox was among the strong juniors in the 1970s and 1980s and finished tied for first in a British U18 championship.

The need to earn a living made Cox leave the chess scene for several years.

[2] Since the book was written, Cox has largely abandoned the Alekhine because of perceived trouble for Black in the Four Pawns Attack variation.

[1] A manual for Black on Queen's Pawn Game sidelines such as the Colle System and Trompowsky Attack was published in 2005 under the title Dealing with 1 d4 deviations.