Douglas "Dan'l" Lambert (4 October 1883 – 13 October 1915) was an English rugby union footballer for Harlequins, England, and the Barbarians. He won 7 caps for England between 1907 and 1911, notably scoring 5 tries on debut against France (not bettered until 1995), and 22 points in another match against France. Lambert was all round sportsman: he was a scratch golfer, played football (soccer) for Corinthian Casuals, and kept wicket (cricket) for Hertforshire. He was killed in action at the Battle of Loos on 13 October 1915.