The Roman Catholic Diocese of La Rioja (Latin: Dioecesis Rioiensis) is in Argentina and is a suffragan of the Archdiocese of San Juan de Cuyo.

On Tuesday, July 9, 2013, Pope Francis accepted the resignation from the pastoral care of the Roman Catholic Diocese of La Rioja (La Rioja, Argentina), presented by Bishop Roberto Rodríguez, in accordance with Canon 401.1 of the Latin-rite 1983 Code of Canon Law.

Bishop Daniel Marcelo Colombo was born in the national capital and largest city, Buenos Aires, Argentina, on March 27, 1961, after earning a bachelor's degree of mercantile appraiser and the title of lawyer at the University of Buenos Aires.

Ordained a priest on 16 December 1988, in 1994 he obtained a doctorate in canon law from the Angelicum, in Rome.

He held various positions in different parishes, in the Curia and the Seminary of Quilmes and was professor at the Faculty of Canon Law of the Catholic University Argentina and Episcopal Delegate at the Catholic University of La Plata.