Ravni Topolovac (Serbian Cyrillic: Равни Тополовац; Hungarian: Katalinfalva) is a village in Serbia.The village has a Serb ethnic majority (88.09%) and its population numbering 1,352 people (2002 census).Some sources say that the first mention of the village called Topolovac dating from the seventeenth century.For Hungary maps relating to the sixteenth, seventeenth and eighteenth century we find several villages under this name.Thus, the name transferred to more moves in the Banat villages along the river Tamis (Secanj, Šarca, Catherine).