Arnaldo Ribeiro (January 7, 1930–December 15, 2009) was the Roman Catholic Archbishop of the Roman Catholic Archdiocese of Ribeirão Preto, Brazil. Ordained to the priesthood on March 13, 1954, in the Archdiocese of Belo Horizonte, Ribeiro was named auxiliary bishop of the Belo Horizonte Archdiocese on November 6, 1975, and was ordained bishop on December 27, 1975. On December 28, 1988, Ribeiro was named Archbishop of the Ribeirão Preto Archdiocese; he retired on April 5, 2006.