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. Stoop was born on 27 March 1883 in Cromwell Road, London. His father was Dutch and his mother was half Scottish/half Irish. He went to Dover College in 1896 and on to Rugby School in 1898, where he played for the school team, and then to Oxford University, where he was captain of the rugby team in 1904.