The Church of Saint Sava (Serbian Cyrillic: Храм Светог Саве, romanized: Hram Svetog Save, lit. ''The Temple of Saint Sava'') is a Serbian Orthodox church in the Vračar plateau in Belgrade, Serbia. It is the largest Orthodox church in Serbia, one of the largest Eastern Orthodox churches and it ranks among the largest churches in the world. It is the most recognisable building in Belgrade and a landmark, as its dominating exterior resembles that of the Hagia Sophia, after which it was modelled.
The church was initially planned to serve as a cathedral, dedicated to Saint Sava, the first Serbian Archbishop and the nation's patron saint. The location at Vračar was symbolically chosen due to the Ottoman burning of Sava's relics on a pyre in 1594/95 after a Serb uprising. Construction began in 1935 after years and decades of planning, wars and political turmoil. The commission chose to base the design on the Hagia Sophia, a universally acclaimed church building. World War II and the coming Communist leadership put a halt to construction. Permission was finally granted by the Socialist Serbian government in 1984, after which construction resumed with revised construction techniques and the architectural achievement of lifting the 4,000 tonnes dome into place in June 1989.