The Rey del Ring (2015) show (Spanish for "King of the Ring") was an annual professional wrestling major event produced by Mexican professional wrestling promotion International Wrestling Revolution Group (IWRG), and took place on April 5, 2015 in Arena Naucalpan, Naucalpan, State of Mexico, Mexico. The main event was the Eponymous IWRG Rey del Ring tournament, the thirteenth annual version of the tournament, which is IWRG's version of WWE's Royal Rumble event.