Timiș is a county (județ) of western Romania on the border with Hungary and Serbia, in the historical region of Banat, with the county seat at Timișoara. It is the westernmost and the largest county in Romania in terms of land area. The county is also part of the Danube–Criș–Mureș–Tisa Euroregion.

Banat is a geographical and historical region located in the Pannonian Basin that straddles Central and Eastern Europe. It is currently divided among three countries: the eastern part lies in western Romania ; the western part of Banat is in northeastern Serbia ; and a small northern part lies within southeastern Hungary.