The National Theatre (Serbian: Народно позориште, romanized: Narodno pozorište) is a theatre located in Belgrade, Serbia.
Founded in the later half of the 19th century, it is located on the Republic Square, at the corner of Vasina and Francuska Street. With the raising of this building as well as with the implementation of the Regulations Plan of Town in Trench by Josimović from 1867, the conditions were made for the formation of today's main Republic Square in Belgrade. Built back in 1868, the National Theatre, following the fate of its own people and the country, went through different phases of the architectural and artistic development, surviving as a symbol of Serbian culture, tradition and spirituality. Today, under its roof, there are three artistic ensembles: opera, ballet, and drama.
The National Theatre was declared a Monument of Culture of Great Importance in 1983, and it is protected by the Republic of Serbia.