The Roman Catholic Diocese of Sololá-Chimaltenango is a Latin suffragan diocese in the ecclesiastical province of the Archdiocese of Los Altos Quetzaltenango-Totonicapán in Guatemala's southern interior.

It has a Cathedral episcopal see, Catedral Nuestra Señora de la Asunción, in Sololá, and a Co-Cathedral Concatedral Santa Ana, in Chimaltenango.

It was erected on 10 March 1951, as the Diocese of Sololá, on territories split off from the 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.

This article about a Catholic diocese is a stub.