Tašmajdan Park (Ташмајдански парк / Tašmajdanski park), colloquially Tašmajdan (Ташмајдан) or simply just Taš (Serbian Cyrillic: Таш, literally: Tash), is a public park and the surrounding urban neighborhood of Belgrade, the capital of Serbia. It is located in Belgrade's municipality of Palilula.
In 2010–2011 the entire park saw its largest reconstruction since its creation in 1954. In November 2021, the park was declared a cultural monument and placed under protection. With the adjoining faculty buildings, it forms "Tašmajdan and University Center" protected spatial cultural-historical unit.
Tašmajdan begins southeast of Belgrade's designated center, Terazije, covering the extreme south-west corner of the Palilula municipality, bordering the municipalities of Vračar on the south and Stari Grad on the west. In a narrower sense, Tašmajdan occupies the area bounded by the streets of Takovska on the north-west, Ilije Garašanina on the northeast, Beogradska on the southeast and Bulevar kralja Aleksandra. The majority of the area is occupied by the park itself (central, east, west) while the northern and extreme western sections are urbanised. In a wider sense, it occupies the additional area to the north (between Ilije Garašanina and 27. marta streets) and east (between Beogradska and Karnedžijeva streets) The latter is also known as Little Tašmajdan. Tašmajdan is bordered by the neighborhoods of Palilula on the northeast, while it extends into the neighborhoods of Vukov Spomenik, Krunski Venac and Nikola Pašić Square on the east, south and west, respectively.
The neighborhood of Tašmajdan forms a local community (mesna zajednica), sub-municipal administrative unit within Palilula. It had a population of 4,887 in 1981, 4,373 in 1991, 4,018 in 2002, and 3,073 in 2011.
Almost two millennia ago, Romans were extracting stone from the quarry located in the area for the building of Belgrade's predecessor, Singidunum and for many surviving sarcophagi from that period. It was recorded that the Romans used this stone for the construction of the city's aqueduct in 69 AD.