A județ (pronounced [ʒuˈdets], plural județe [ʒuˈdetse]) is an administrative division in Romania, and was also used from 1940 to 1947 in the Moldavian Soviet Socialist Republic and from 1998 to 2003 in Moldova.

Județ translates into English as "jurisdiction", but is commonly rendered as county (the preferred term for that being comitat in Romanian).

There are 41 județe in Romania, divided into municipii (municipalities), orașe (cities) and comune (communes). Each județ has a county seat (reședință de județ) which serves as its administrative capital; this designation usually belongs to the largest and most developed city in the respective county. The central government is represented by one prefect in every județ.

Bucharest, the capital, is its own județ. It also acts as the county seat of Ilfov.