Susan Egelstaff (born 12 October 1982; née Hughes) is a Scottish badminton player. Egelstaff won team bronze at the 2002 Commonwealth Games in Manchester, took women's singles bronze four years later in Melbourne, and finished fourth in the singles in Delhi. In 2012, she competed for Great Britain at the 2012 Summer Olympics. She failed to progress past the group stage, beating Maja Tvrdy but losing to the 12th seed Sayaka Sato in three games.