Jamu Mare (Hungarian: Nagyzsám; German: Freudenthal or Großscham; Serbian: Велики Жам, romanized: Veliki Žam) is a commune in Timiș County, Romania.

It is composed of five villages: Clopodia, Ferendia, Gherman, Jamu Mare (commune seat), and Lățunaș.

On the other side of the border, in Serbia, there is a village called Mali Žam ("Smaller Jam/Žam").

At the end of the 18th century, Hungarian statistician Elek Fényes [hu] recorded that the village called Nagy-Zsám had a population of 1,562 and belonged to the nobleman László Karácsonyi.

[8] Jamu Mare is now a railway terminus, but between 1925 and 1930, trains would pass through it all the way to Vršac in present-day Serbia.