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 a premises otherwise meeting the criterion currently does not function as a church. For example, the Hagia Sophia in Turkey 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 buildings are listed in alphabetical order according to country. The churches are from various jurisdictions of the Eastern Orthodox Church.
The Church of Saint Sava is a 79 m high Serbian Orthodox church, which sits on the Vračar plateau in Belgrade, Serbia. It was planned as the bishopric seat and main cathedral of the Serbian Orthodox Church. The church is dedicated to Saint Sava, the founder of the Serbian Orthodox Church and an important figure in medieval Serbia. It is built on the presumed location of St. Sava's grave. His coffin had been moved from Mileševa Monastery to Belgrade. The coffin was placed on a pyre and burnt in 1595 by Ottoman Grand Vizier Sinan Pasha. Bogdan Nestorović and Aleksandar Deroko were finally chosen to be the architects in 1932 after a second revised competition in 1926–27. This sudden decision instigated an important debate in interwar Yugoslavia which centered around the temple's size, design and symbolic national function. This was accompanied by a sizeable increase in the base area of the ambitiously conceived project. The new design departed from the competition guidelines issued in 1926, and was to replicate the dimensions and architecture of Hagia Sophia.
The People's Salvation Cathedral, also known as the National Cathedral, is an Eastern Orthodox cathedral under construction in Bucharest to serve as the patriarchal cathedral of the Romanian Orthodox Church. It is located in central Bucharest on Spirea's Hill, facing the same courtyard as the Palace of Parliament which is the heaviest building in the world, the cathedral having a one-tenth of its weight and about one-fifth of its volume. Situated behind the Palace of Parliament, this will make it 50 metres taller than the Palace, and will help to make the cathedral an iconic landmark in the city. The People's Salvation Cathedral to 135 metres (443 ft) height (ground-cross), holds a dominant position in Bucharest's cityscape, being visible from all approaches to the city.
The Orthodox Cathedral, also known as the Metropolitan Cathedral, is a Romanian Orthodox church in Timișoara. The cathedral is the seat of the Archbishopric of Timișoara and the Metropolis of Banat. It is dedicated to the Three Holy Hierarchs, Basil the Great, Gregory the Theologian and John Chrysostom.
Eastern Orthodox church architecture constitutes a distinct, recognizable family of styles among church architectures. These styles share a cluster of fundamental similarities, having been influenced by the common legacy of Byzantine architecture from the Eastern Roman Empire. Some of the styles have become associated with the particular traditions of one specific autocephalous Eastern Orthodox patriarchate, whereas others are more widely used within the Eastern Orthodox Church.
The Metropolitan Cathedral, Iași, located at 16 Ștefan cel Mare și Sfânt Boulevard, Iași, Romania, is the seat of the Romanian Orthodox Archbishop of Iași and Metropolitan of Moldavia and Bukovina, and the largest historic Orthodox church in Romania. It is dedicated to Saint Parascheva, to the Presentation of Jesus and to Saint George. Its form was inspired by the late Italian Renaissance style, with Baroque elements dominating the interior and exterior decorative features. The Metropolitan Cathedral is listed in the National Register of Historic Monuments.
The Dormition of the Theotokos Cathedral, Giurgiu, located at 12 București Street, Giurgiu, Romania, is the seat of the Romanian Orthodox Bishop of Giurgiu.
The SS. Michael and Gabriel Cathedral is a Greek-Catholic religious building in Satu Mare, Romania, built between 1932 and 1937 in place of an older church which had been opened in 1803. The newer edifice was commissioned to architects Victor Smigelschi and Gheorghe P. Liteanu, and its style relates to the Neo-Brâncovenesc architecture of the period, featuring a pendentive dome with towers on either side of the narthex and a monumental portal at the entrance.
The Coronation Cathedral, dedicated to the Holy Trinity and the Holy Archangels Michael and Gabriel, is a Romanian Orthodox cathedral located at 16 Mihai Viteazul Street, Alba Iulia, Romania. Built soon after and in commemoration of the Union of Transylvania with Romania, it is the seat of the Romanian Orthodox Archdiocese of Alba Iulia.
Church of St. Nicholas in Vukovar is a Serbian Orthodox church in eastern Croatia. The church is one of the oldest baroque buildings of the Serb community north of the Sava River.
The Church of St. Nicholas or Karlovac Cathedral, is a Serbian Orthodox church located in Karlovac, in central Croatia. The original church was finished in 1787, and was dedicated to Saint Nicholas. In 2007, the church was completely renovated.
Saint Joseph Cathedral is a historical and architectural monument located in Bucharest, Romania, at 19 General Berthelot Street. It is the main place of worship which serves as cathedral of the Roman Catholic Archdiocese of Bucharest.
The Church of the Holy Emperor Uroš is a Serbian Orthodox church located in the center of Ferizaj in Kosovo. It belongs to the Eparchy of Raška and Prizren.
Orthodox churches in Rostov-on-Don were built during the 17th–20th centuries; they played a role in shaping of the architectural appearance of Rostov-on-Don. They created the high-altitude dominants.
The Holy Trinity Cathedral of the Alexander Nevsky Lavra is a Russian Orthodox cathedral in Saint Petersburg. It is in the Diocese of Saint Petersburg and part of the Alexander Nevsky Lavra, where it is the cathedral church of the monastery complex.
The Church of the Resurrection is a Russian Orthodox cathedral located on the coast of Lake Kopa in Kokshetau, the capital of Akmola Region in the northern part of Kazakhstan. The main temple of Kokshetau Deanery of Russian Orthodox Church (ROC).
The Church of the Nativity of the Theotokos is an Orthodox church in the Iosefin district of Timișoara.
The Ascension Cathedral, commonly known as the Serbian Orthodox Cathedral, is the cathedral of the Serbian Orthodox Eparchy of Timișoara. Located in the Union Square of Cetate district, the building is one of the three Serbian Orthodox churches in the city together with the St. George Church in Fabric district and the St. Nicholas Church in the Avram Iancu Square of Mehala district.