The UWA World Lightweight Championship (Campeonato Mundial de Peso Ligero UWA in Spanish) is an inactive professional wrestling championship promoted by the Mexican wrestling promotion Universal Wrestling Association (UWA) from 1975 until some time around 2000 when Kato Kung Lee, Jr. stopped defending it.

The official definition of the lightweight weight class in Mexico is between 63 kg (139 lb) and 70 kg (150 lb), but the weight limits are not always strictly adhered to.

[a][1] The first champion was El Matematico, winning the title in December 1975.

[b] 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,[c] or real life issues such as a champion suffering an injury being unable to defend the championship,[d] or leaving the company.