Nicholas Matthew OBE (born 25 July 1980 in Sheffield) is a former English professional squash player who has won the two most prestigious tournaments in the professional game, the British Open and the World Open, three times each. He reached a career-high world ranking of World No. 1 in June 2010. His home club is Hallamshire Tennis and Squash Club in Sheffield which has named 'The Nick Matthew Showcourt' after him.