The Sălaj is a left tributary of the river Someș in Romania. It discharges into the Someș in Sălsig. Its length is 39 km (24 mi) and its basin size is 457 km (176 sq mi).

Tributaries

The following rivers are tributaries to the river Sălaj:

• Left: Mineu, Cioara, Cămin, Oarța, Băsești, Tămășești, Urmeniș, Asuaj
• Right: Valea Râturilor