IWRG Intercontinental Welterweight Championship

The IWRG Intercontinental Welterweight Championship (Campeonato Intercontinental Welter IWRG in Spanish) is a professional wrestling championship promoted by the Mexican wrestling promotion International Wrestling Revolution Group (IWRG) since 1998. The official definition of the Welterweight weight class in Mexico is between 70 kg (150 lb) and 78 kg (172 lb), but the weight limits are not always strictly adhered to. Because Lucha Libre puts more emphasis on the lower weight classes, this division is considered more important than the normally more prestigious heavyweight division of the promotion.

The first Welterweight champion was Dr. Cerebro, winning the title on March 1, 1998, in a tournament final against Shiima Nobunaga. Dr. Cerebro Jr. is the current champion, having defeated Puma de Oro and then-champion Tonali for the title on January 1, 2024. Dr. Cerebro Jr. is the 40th overall champion and the 22nd person to have held the championship. Cerebro Negro is the person with most title reigns, a total of seven. He also has the distinction of having the shortest reign (at seven days) and the longest reign (1,246 days).

As it is a professional wrestling championship, the championship was not won not by actual competition, but by a scripted ending to a match determined by the bookers and match makers. On occasion the promotion declares a championship vacant, which means there is no champion at that point in time. This can either be due to a storyline, or real life issues such as a champion suffering an injury being unable to defend the championship, or leaving the company.