Tomaševac (Serbian Cyrillic: Томашевац; Hungarian: Tamáslaka) is a village in Serbia. It is located in the Zrenjanin municipality, in the Central Banat District, Vojvodina province. The village has a Serb ethnic majority (92.12%) and its population numbering 1,765 people (2002 census).

Names in other languages: Hungarian: Tamáslaka, German: Tomaschewatz.

• 1961: 2,532
• 1971: 2,354
• 1981: 2,149
• 1991: 1,904

• Slobodan Ćurčić, Broj stanovnika Vojvodine, Novi Sad, 1996.

• List of places in Serbia
• List of cities, towns and villages in Vojvodina