The Iza is a left tributary of the river Tisa in northern Romania.

It flows into the Tisa near the city Sighetu Marmației.

[4] It passes through the communes Săcel, Săliștea de Sus, Dragomirești, Bogdan Vodă, Șieu, Rozavlea, Strâmtura, Bârsana, Oncești, Vadu Izei, and Sighetu Marmației.

Its drainage basin covers an area of 1,293 km2 (499 sq mi).

This article related to a river in Maramureș County is a stub.