Adrian Stoop (27 March 1883 – 27 November 1957) was an English rugby union player of Dutch descent.He played 182 times for Harlequins between 1901 and 1939, and won 15 caps for England.He was president of the Harlequins 1920–1949. The club's ground, The Stoop, is named in his memory.His association with Harlequins lasted from his debut against Oxford University in November 1901 until 1950 when he ended his 30-year stint as president of the club.