Diede de Groot (born 19 December 1996) is a Dutch wheelchair tennis player.
During her career, de Groot won over ten Grand Slam tournaments including back to back women's singles events at Wimbledon from 2017 to 2018.
In 2019, de Groot completed her Career Grand Slam when she won the singles title at the 2019 French Open.
Her 2019 singles win at the French Open also made de Groot the first wheelchair tennis player to complete a non-calendar year grand slam.
Apart from her Grand Slam wins, De Groot won multiple Wheelchair Tennis Masters titles between 2016 and 2018 and a silver medal at the 2016 Summer Paralympics.