Zmajevo (Serbian Cyrillic: Змајево; Hungarian: Ókér) is a village in Serbia.

It is situated in the Vrbas municipality, in the South Bačka District, Vojvodina province.

The village has a Serb ethnic majority and its population numbering 4,361 people (2002 census).

It has lakes that are full of carp (Zmajevacka jezera) and a large hunting ground with many wild animals.

The current name, Zmajevo, derived from nickname of Serbian poet Jovan Jovanović Zmaj.