Aghstev river and its basin (yellow) within Armenia
Aghstev river on the road to Dilijan
Aghstafa (Azerbaijani: Ağstafacay; Armenian: Աղստև – Aghstev, Russian: Акстафа - Akstafa) is a river in Armenia and Azerbaijan, and is a right tributary of the Kura River.
Aghstev is 133 kilometres (83 mi) long with a drainage basin of 2,589 square kilometres (1,000 sq mi). Along the river lie the cities of Dilijan, Ijevan, Gazakh and Aghstafa.
Coordinates: 41°15′N 45°26′E / 41.250°N 45.433°E