The Roman Catholic Diocese of Sault Sainte Marie(-Marquette / in Michigan), previously a residential episcopal see of the Roman Catholic Church in the Upper Peninsula of Michigan, USA, is now a titular see. Its first and most famous occupant was Ven. Irenaeus Frederic Baraga. Its present occupant is the Most Rev. Francis J. Kane, Auxiliary Bishop of Chicago.
Established on July 29, 1853, as the Apostolic Vicariate of Upper Michigan, on territory taken from the Roman Catholic Diocese of Detroit, notably the northern part of Michigan, and headquartered in Sault Ste. Marie, with Holy Name of Mary Church in the see city as the cathedral church.
It was elevated on January 9, 1857 as the Diocese of Sault Sainte Marie. On October 23, 1865 it was renamed the Diocese of Sault Sainte Marie-Marquette.
It was formally suppressed on January 3, 1937, its territory being reassigned to erect the Diocese of Marquette, while in fact the see city of the Diocese was transferred to Marquette, to where the incumbent was appointed the first Bishop.
(All Roman Rite)
The Diocese was nominally restored in 1995 as a titular bishopric of the Latin Church sub nomine "Sault Sainte Marie" and in 1996 was renamed "Sault Sainte Marie in Michigan", under which name it has had the following incumbents, so far of the fitting episcopal (lowest) rank: