Robert Walter McElroy (born February 5. 1954) is the Roman Catholic titular bishop of Gemellae in Byzacena and auxiliary bishop of the Roman Catholic Archdiocese of San Francisco, California.
Born in San Francisco, California, McElroy was ordained to the priesthood for the San Francisco Archdiocese on April 12, 1980. On July 6, 2010, Elroy was appointed bishop and was ordained on September 7, 2010.[1]