Gordon James Reid is a British professional wheelchair tennis player. He was ranked world No. 1 in singles and world No. 1 in doubles. He is a Paralympic gold, silver, and bronze medalist, two-time Grand Slam singles champion, and record holding twenty-three time Grand Slam doubles champion.

The Grand Slam in tennis is the achievement of winning all four major championships in one discipline in a calendar year. In doubles, a Grand Slam may be achieved as a team or as an individual with different partners. Winning all four major championships consecutively but not within the same calendar year is referred to as a "non-calendar-year Grand Slam", while winning the four majors at any point during the course of a career is known as a "Career Grand Slam".