Sisak (; also known by other alternative names) is a city in central Croatia located at the confluence of the Kupa, Sava, and Odra rivers, southeast of the Croatian capital Zagreb. The city's total population in 2011 was 47,768 of which 33,322 live in the urban settlement (naselje).

Sisak (; also known by other alternative names) is a city in central Croatia located at the confluence of the Kupa, Sava, and Odra rivers, southeast of the Croatian capital Zagreb. The city's total population in 2011 was 47,768 of which 33,322 live in the urban settlement (naselje).