Novi Beograd or New Belgrade (Serbian Cyrillic: Нови Београд, pronounced [nôʋiː beǒɡrad]) is the most populous municipality that constitutes the City of Belgrade, the capital of Serbia. It is a planned city, built in 1947 on the left bank of the Sava river which was previously an uninhabited area, opposite of the old Belgrade. In recent years it has become the new financial centre of Belgrade and its fastest developing area, with many businesses moving to the new part of the city, due to more modern infrastructure and larger available space. With population of 212,104 people, it is the most populous municipality of Belgrade.

Novi Beograd is located on the left bank of the Sava river, in the easternmost part of the Srem region. Administratively, its northeastern section touches the right bank of the Danube, right before the Sava's confluence. It is generally located west of the 'Old' Belgrade to which it is connected by six bridges (Gazela, Branko's bridge, Old Sava bridge, old, New Railway Bridge and Ada Bridge). European route E75, with five grade separations, including a new double-looped one at the Belgrade Arena, goes right through the middle of the settlement.