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Pelagićevo (Serbian Cyrillic: Пелагићево) is a town and municipality in Republika Srpska, Bosnia and Herzegovina. It is located in the Posavina geographical region. As of 2013, the town has a population of 2,796 inhabitants, while the municipality has 5,220 inhabitants.
It was originally named Gornji Žabar, and was later renamed after Vaso Pelagić, a representative of utopian socialism in Serbia during the second half of the nineteenth century, born in the town in 1833.