Sečanj (Serbian Cyrillic: Сечањ, Hungarian: Torontálszécsány) is a town located in the Central Banat District of the autonomous province of Vojvodina, Serbia.

In Serbian and Croatian, the town is known as Sečanj (Сечањ), in Hungarian as Szécsány or Torontálszécsány, in German as Setschan or Petersheim, and in Romanian as Seceani.

Serbian, Hungarian, and Romanian language are officially used by municipal authorities.

The settlements with Serb ethnic majority are: Sečanj, Banatska Dubica, Boka, Jarkovac, Jaša Tomić, Krajišnik, and Sutjeska.

Ethnically mixed settlements with relative Serb majority are: Konak, Neuzina and Šurjan.