The Roman Catholic Diocese of Concordia in America (its present title as a titular see) was founded on August 2, 1887 by Pope Leo XIII. On December 23, 1947, at inception, the Diocese was renamed the Roman Catholic Diocese of Salina. In 1995, the Diocese of Concordia was restored as a titular see.
The Latin adjective referring to this episcopal see is Concordiensis, while that referring to the Roman Catholic Diocese of Concordia, a residential see in Argentina, is Foroconcordianus.