Richard Walter John Montagu Douglas Scott, 10th Duke of Buccleuch and 12th Duke of Queensberry,  (born 14 February 1954), styled as Lord Eskdaill until 1973 and as Earl of Dalkeith from 1973 until 2007, is a Scottish landholder and peer.
Richard Walter John Montagu Douglas Scott, the 10th Duke of Buccleuch and 12th Duke of Queensberry, born on February 14, 1954, held titles as Lord Eskdaill until 1973 and Earl of Dalkeith from 1973 to 2007, is a Scottish nobleman and landholder.