Gaj is a village in Serbia. It is situated in the Kovin municipality, in the South Banat District, Vojvodina province. The village has a Serb ethnic majority (79.31%) and its population numbering 3,302 people.
Historical population
• 1961: 3,532 • 1971: 3,701 • 1981: 3,661 • 1991: 3,432 == Major ethnic groups ==