This is a list of the largest Eastern Orthodox church buildings in the world, based on area and capacity. Any Eastern Orthodox church building that has a capacity of 3,000 people or more, can be added to this page. Entries are included even if they currently do not function as a church. For example, the Hagia Sophia is included – it was originally built as a church but was later converted into a mosque. Sorting is done by volume (priority) and area. The church building are listed in alphabetical order according to country. The churches are from various jurisdictions of the Eastern Orthodox Church.

List

Name	Image	Area (m²)		Gross volume (m³)	Capacity	Built	City	Country	Jurisdiction	Notes
		Interior	Exterior
People's Salvation Cathedral		8,400 m² [1][2][3][4]	ca. 13,670 m²[1][4][5][6]	478,857 m³[4]	7,000 [a][7]	2010–present	Bucharest	Romania	Patriarchate of Romania	Along with the largest volume and interior area, 126,1 m high and 120 m long, it is the tallest and longest Orthodox church building in the world.[4]
Saint Isaac's Cathedral [b]		4,000 m² [8]	7,418 m²[9]	260,000 m³	12,000 [10]	1818-1858, Museum 1931	Saint Petersburg	Russia	State Russian Museum	With 105 m length and 93 m width it is the Orthodox church building that has the greatest groundfloor extent.
Hagia Sophia		7,960[citation needed]		255,800 m³ [11]		532–537	Istanbul	Turkey	Ecumenical Patriarchate 537-1453	converted to mosque
Church of Saint Sava		3,650 m² [c][12]	4,830 m²[13]	170,000 m³ [12]	6,000−10,000 [d][14][12]	1935–2004	Belgrade	Serbia	Serbian Patriarchate	It is the tallest (78 m), longest (91 m), widest (81 m) and largest (by area and volume) church building in the Balkans.
Cathedral of Christ the Saviour		3,990 m² [15][16] [e]	6,829.3 m² [15][17]	101,992 m³ [15]	10,000 [18]	1839–1883, Demolished 1931, Rebuilt 1994–2000	Moscow	Russia	Moscow Patriarchate	The church building has an underground area of 28,000 m², it contains the hall of the church council with 1,250 places, the hall of the synod meetings, refectory, and technical installations[19]
Kazan Cathedral		4,000 m²[citation needed]			6,000[citation needed]	1811	Saint Petersburg	Russia	Moscow Patriarchate
Trinity Izmailovsky Cathedral		3,500 m² [20]			3,000 [20]	1835	Saint Petersburg	Russia	Moscow Patriarchate
Holy Trinity Cathedral of Tbilisi (Tsminda Sameba Cathedral)		3,000 m²[citation needed]		137,000 m³[citation needed]	10,000[citation needed]	1995-2004	Tbilisi	Georgia	Patriarchate of Georgia
Novocherkassk Ascension Cathedral		2,900 m²[citation needed]		135,000 m³ [21]	5,000[citation needed]	1904	Novocherkassk	Russia	Moscow Patriarchate
Alexander Nevsky Cathedral		3,170 m² [22]		86,000 m³ [23]	5,000 [24]	1882-1912	Sofia	Bulgaria	Patriarchate of Bulgaria	It is the tallest (53 m) and largest (by area and volume) Orthodox cathedral in the Balkan peninsula.
Transfiguration Cathedral		3,100 m²[citation needed]			9,000 [25]	1837, rebuilt 2003	Odesa	Ukraine	Moscow Patriarchate
Smolny Convent		3,000 m²[citation needed]			6,000 [26]	1764	Saint Petersburg	Russia	Moscow Patriarchate
Kronstadt Naval Cathedral		3,000 m²[citation needed]			5,000[citation needed]	1913	Kronstadt	Russia	Moscow Patriarchate
Church of Saint Panteleimon		2,400 m²[citation needed]			5,000[citation needed]	1930	Athens	Greece	Greek Orthodox Church
Holy Trinity Cathedral		2,100 m²[citation needed]			5,000[citation needed]	1990–present	Baia Mare	Romania	Patriarchate of Romania
Annunciation Cathedral		2,000 m²[citation needed]			5,000 [27]	1901	Kharkiv	Ukraine	Ukrainian Orthodox Church
Saint Andrew of Patras		2,600 m² [28]			7,000 [28]	1908–1974[29]	Patras	Greece	Greek Orthodox Church
Cathedral of the Lord's Ascension		1,706 m² [30]			5,000[citation needed]	2017	Bacău	Romania	Patriarchate of Romania
Resurrection Cathedral		1,660 m²[citation needed]			5,000[citation needed]	2014	Tirana	Albania	Albanian Orthodox Church
Timișoara Orthodox Cathedral		1,542 m²[31]		50,000 m³ [31]	5,000 [32]	1940	Timișoara	Romania	Patriarchate of Romania	With 91 m height It is the second tallest church building in Romania.
Alexander Nevsky Cathedral		1,450 m²[citation needed]			4,000[citation needed]	1900	Tallinn	Estonia	Moscow Patriarchate
Agios Minas Cathedral		1,350 m² [33]			3,000[citation needed]	1895	Heraklion	Greece	Greek Orthodox Church
Saint Mark's Church		1,150 m²[citation needed]			3,000[citation needed]	1931–1940	Belgrade	Serbia	Serbian Patriarchate
Saints Boris and Gleb Cathedral		1,100 m²[citation needed]			3,000[citation needed]	1905	Daugavpils	Latvia	Moscow Patriarchate
Poti Cathedral		1,000 m²[citation needed]			3,000[citation needed]	1906	Poti	Georgia	Patriarchate of Georgia
Uspenski Cathedral		1,000 m²[citation needed]				1868	Helsinki	Finland	Finnish Orthodox Church
St. Michael's Cathedral					12,000[citation needed]	2000	Cherkasy	Ukraine	Ukrainian Orthodox Church
Church of the Holy Sepulchre					10,000[34]	326	Jerusalem	/ Israel/Palestine	Patriarchate of Jerusalem
Transfiguration Cathedral of Ugresha Monastery					7,000[citation needed]	1894	Dzerzhinsky, Moscow Oblast	Russia	Moscow Patriarchate
Church of the Nativity of Christ					5,000[35]	1857	Kyshtym	Russia	Moscow Patriarchate
St. Nicholas Naval Cathedral					5,000[citation needed]	1753	Saint Petersburg	Russia	Moscow Patriarchate
Sophia Cathedral					5,000[citation needed]	1788	Saint Petersburg	Russia	Moscow Patriarchate
Uzhhorod Orthodox Cathedral					5,000[citation needed]	1990	Uzhhorod	Ukraine	Ukrainian Orthodox Church
Iași Metropolitan Cathedral					3,000 [36]	1887	Iași	Romania	Patriarchate of Romania
Church of Holy Transfiguration						1873–1878	Pančevo	Serbia	Serbian Patriarchate