Trnje (Croatian pronunciation: [tr̩̂ːɲe]) is a district in the City of Zagreb, Croatia. According to the 2011 census, the district had 42,282 residents. It is located in the central part of the city, south of Donji grad across the railway (Zagreb Main Station), east of Trešnjevka (Savska road), west of Peščenica (Vjekoslav Heinzel Avenue and Marin Držić Avenue), and north of the river Sava.