Heliodorus Trosidamas of Alexandria was an ancient athlete listed by Eusebius of Caesarea as two times victor in the stadion race of the 248th Olympiad (213 AD) and in the 249th Olympiad (217 AD).^[1] He was the last winner of the stadion race from Alexandria in Egypt recorded by Eusebius and his second title was the 20th Alexandrian crown in the Christian era.