Ciaran Hearn (born December 30, 1985) is a Canadian rugby union player who currently plays for Old Glory DC of Major League Rugby (MLR). Hearn was part of the Canadian squad at the 2011 Rugby World Cup in New Zealand where he featured in two matches and in the second tier squad for the 2015 World Cup Team. He is also a member of the Canadian 7 A-side men's Teams In 2020, he signed with expansion team Old Glory DC in Major League Rugby, and re-signed for the 2021 season. At the end of the 2021 season, he announced that he was retiring from rugby.