The WWA World Middleweight Championship is a secondary professional wrestling championship promoted by the Mexican Lucha Libre wrestling-based promotion World Wrestling Association (WWA) since 1987. The official definition of the middleweight weight class in Mexico is between 82 kg (181 lb) and 87 kg (192 lb), but is not always strictly enforced.

El Solar is the ring name of a Mexican Luchador enmascarado, or masked professional wrestler who has been working in Mexico since 1975. El Solar's real name is not a matter of public record, as is often the case with masked wrestlers in Mexico where their private lives are kept a secret from the wrestling fans. His brother works as El Solar II and his son has been wrestling as El Hijo del Solar since 2008.