Lewis Calder (born 4 May 1988) is a professional Rugby Union player who currently plays flanker for London Scottish. Calder captained the Scotland U21 side and represented the Scotland Sevens in 2010.
He is a former pupil of Stewart's Melville College and has had spells with the Newcastle Falcons and the Exeter Chiefs.
Calder is the son of 1984 Five Nations Championship Grand Slam Winner Jim Calder and nephew of former British Lions captain Finlay Calder.
Lewis also has a Law degree from Durham University.