The Diocese of Memphis (Latin: Dioecesis Memphitana in Tennesia) is a Latin Church ecclesiastical territory or diocese of the Catholic Church consisting of the counties of Tennessee to the west of the Tennessee River. The diocese is split into two deaneries. The Memphis Deanery encompasses twenty-eight (28) parishes in Shelby County. The Jackson Deanery encompasses fourteen (14) parishes and five (5) missions in the other 20 counties in the diocese. The diocesan cathedral is the Cathedral of the Immaculate Conception in Memphis. The Diocese of Memphis is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of Louisville.