Roman Catholic Diocese of Saint Gallen

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Diocese of St. Gallen Diœcesis Sancti Galli Bistum Sankt Gallen
Cathedral of the Diocese
Coat of arms
Location
Country	Switzerland
Metropolitan	Immediately Subject to the Holy See
Statistics
Area	2,429 km2 (938 sq mi)
Population - Total - Catholics	(as of 2017) 650,134 261,690 (40.3%)
Parishes	142
Information
Denomination	Catholic
Sui iuris church	Latin Church
Rite	Roman Rite
Established	8 April 1847
Cathedral	Abbey of Saint Gall
Patron saint	Saint Gall
Current leadership
Pope	Francis
Bishop	Markus Büchel
Map
Map of the Diocese
Website
bistum-stgallen.ch

The Catholic Diocese of Saint Gallen (Latin: Diœcesis Sancti Galli) is a Latin Catholic diocese in St. Gallen, Switzerland.

The diocese was created in 1824 but united with the episcopal see of Chur until 1847.

Much of the territory had earlier been part of the Diocese of Konstanz.

The St Gallen Cathedral, a UNESCO World Heritage Site, is the see of the diocese.