 It was erected on 10 March 1951, as the Diocese of Sololá, on territories split off from the then Diocese of Quetzaltenango, Los Altos and the Metropolitan Archdiocese of Guatemala.On 27 April 1967, it lost territory to establish the Diocese of Santa Cruz del Quiché.It was renamed Diocese of Sololá-Chimaltenango on 31 December 1996.