The Iza is a left tributary of the river Tisa in northern Romania. Its source is in the Rodna Mountains. It flows into the Tisa near the city Sighetu MarmaÃÂiei. It passes through the communes SÃÂcel, SÃÂliÃÂtea de Sus, DragomireÃÂti, Bogdan VodÃÂ, ÃÂieu, Rozavlea, Strâmtura, Bârsana, OnceÃÂti, Vadu Izei, and Sighetu MarmaÃÂiei. Its drainage basin covers an area of . Its length is .
The following rivers are tributaries to the river Iza: