Rey del Ring (2013) was an annual professional wrestling major event produced by Mexican professional wrestling promotion International Wrestling Revolution Group (IWRG), which took place on May 19, 2013 in Arena Naucalpan, Naucalpan, State of Mexico, Mexico. The main event was the Eponymous IWRG Rey del Ring tournament, the eleventh annual version of the tournament, IWRG's version of World Wrestling Entertainment's Royal Rumble event. 30 men competed in the Rey del Ring, which was won by Oficial 911 when he eliminated Eterno to claim the victory as well as the Rey del Ring Championship belt from previous champion Oficial Factor.

The IWRG Rey del Ring refers both to an annual tournament and a professional wrestling championship promoted by the Mexican Lucha libre professional wrestling promotion International Wrestling Revolution Group (IWRG). From 2002 until 2011 the IWRG Rey del Ring only referred to an annual 30-man tournament, but as of the 2011 tournament there is also a physical championship belt that is and can be defended throughout the year.