Osijek is the fourth largest city in Croatia with a population of 108,048 in 2011. It is the largest city and the economic and cultural centre of the eastern Croatian region of Slavonia, as well as the administrative centre of Osijek-Baranja County. Osijek is located on the right bank of the river Drava, upstream of its confluence with the Danube, at an elevation of .

Osijek is the fourth largest city in Croatia with a population of 108,048 in 2011. It is the largest city and the economic and cultural centre of the eastern Croatian region of Slavonia, as well as the administrative centre of Osijek-Baranja County. Osijek is located on the right bank of the river Drava, upstream of its confluence with the Danube, at an elevation of .