Architecture of Turkey or Turkish Architecture in the Republican Period refers to the architecture practised in the territory of present-day Turkey since the foundation of the republic in 1923. In the first years of the republic, Turkish architecture was influenced by Seljuk and Ottoman architecture, in particular during the First National Architectural Movement (also called the Turkish Neoclassical architecture movement.) However, starting from the 1930s, architectural styles began to differ from traditional architecture, also as a result of an increasing number of foreign architects being invited to work in the country, mostly from Germany and Austria. The Second World War was a period of isolation, during which the Second National Architectural Movement emerged. Similar to Fascist architecture, the movement aimed to create a modern but nationalistic architecture.
Starting from the 1950s, isolation from the rest of the world began to diminish, which enabled the Turkish architects to experiment with new styles and become increasingly inspired by their counterparts in the rest of the world. However, they were largely constrained by the lack of technological infrastructure or insufficient financial resources until the 1980s. Thereafter, the liberalization of the economy and the shift towards export-led growth paved the way for the private sector to become the leading influence on architecture in Turkey.
The First National Architectural Movement (Turkish: Birinci Ulusal Mimarlık Akımı) was an architectural movement led by Turkish architects Vedat Tek (1873–1942) and Mimar Kemaleddin Bey (1870–1927). Followers of the movement wanted to create a new and "national" architecture, which was based on motifs from Seljuk and Ottoman architecture. The movement was also labelled Turkish Neoclassical architecture, or the National Architectural Renaissance. Other prominent followers of this movement were Arif Hikmet Koyunoğlu (1888–1982) and (1873–1953). Notable buildings from this era are the Istanbul Main Post Office (1905–1909), Tayyare Apartments (1919–1922),Istanbul 4th Vakıf Han (1911–1926),State Art and Sculpture Museum (1927–1930),Ethnography Museum of Ankara (1925–1928),Bebek Mosque, and Kamer Hatun Mosque.