Roger Dennis Sangwin (2December 193711March 2022) was an English rugby union international.
A Sedbergh School product, Sangwin was a Yorkshire Schoolboys representative player.
Sangwin, an architect by profession, spent his entire rugby career with Hull & East Riding. He was capped twice by England as a centre in 1964, debuting against the touring All Blacks. His other appearance was in England's opening Five Nations fixture against Wales at Twickenham, which finished in a draw.