Donji Grad (Serbian Cyrillic: Доњи Град; Lower town) is an urban neighborhood of Belgrade, the capital of Serbia.

Donji Grad occupies the central part of Zemun, on the left bank of the Danube.

It borders the neighborhoods of Gardoš on the north, Ćukovac and Muhar on the north-west, Kalvarija on the west, Tošin Bunar on the south-west, Retenzija on the south while the sub-neighborhood of Zemunski Kej is located along the Danube's bank.

It roughly occupies the area bounded by the streets Bežanijska, Vrtlarska, 22. oktobra and Kej oslobođenja.

[5][6] The local community of Donji Grad, which comprised only the small part of the neighborhood, had a population of 8,438 in 1981.

Local communities of Dunav and Zemunski Kej were detached from Donji Grad in the 1980s, so the population diminished to 3,214 in 1991 and 3,104 in 2002.

However, with all the local communities which formed Donji Grad (including 22.Oktobar, Jugoslavija and Radoje Dakić), population in 2002 was 28,174.

Also, almost all of the squares of Zemun are either within or bordering Donji Grad: Karađorđev, Branka Radičevića, Masarikov, Senjski, JNA, Magistratski, Oslobođenja, Veliki, and Pobede.

Within the parochial complex of the Church of the Holy Virgin is the Saint Sava Home, built from 1907 to 1909 which is the only surviving work of architect Kosta Atanacković Stanišić.

[7] Catholic Church of the Ascension of the Blessed Virgin Mary was built on Veliki Trg from 1785 to 1817 (when the belfry was added), with service being held since 1795.

Described as monumental sacral complex, the baroque-style church occupies the entire block between the Veliki Trg and Zmaj Jovina Street.

A memorial plaque was placed on the building on 3 September 2023, commemorating 150 years since the construction of the synagogue, and 575 Zemun Jews who were taken to the Jasenovac concentration camp and murdered.

[10] Elementary school "Svetozar Miletić" in modern Nemanjina Street was founded in 1728 and is one of the oldest surviving educational facilities in Serbia.

Originally planned location was the nearby square of Magistarski Trg, but the new position was selected for ambient reasons.

The representative, residential one-floor house was projected by Franjo Jenč [sr], who constructed over 100 objects in Zemun, for the industrialist Mavra Binder.

The house is a rarity in Belgrade and the entire Serbia because of the unique façade which is ornamented with five plaster trees.

The one-floor house is privately owned, but as it is located within the Old Core of Zemun, the Belgrade Institute for the monuments protection drafter a reconstruction plan for the façade in 2011, but as of 2018 it has not been done.

When some communal works were done in the 2010s, it was discovered that the root of the vine spread beneath the half of the yard, reaching the buried well and draining water from there.

[25] Spirta House The Spirta House, built in 1855 in 9 Glavna street, was declared a cultural monument in 1965,[26] so as the large part of Donji Grad which constitutes the Spatial Cultural-Historical Unit of Great Importance of Old Core of Zemun, which was protected in 1979.