The Hakari (Azerbaijani: Həkəri, Armenian: Հագարի, romanized: Hagari) is a left tributary of the Aras in Azerbaijan, geographically located in the Armenian Highlands.

The river is 128 kilometres (80 mi) long and flows through the Lachin, Qubadli and Zangilan districts of Azerbaijan. Its largest right tributary is the Vorotan (called Bazarchay in Azerbaijan), which joins the Hakari in its lowermost section.

Several populated places are along the river, like Aganli (on the left bank), Alibayli (on the right bank), Mammadbayli (on the left bank) and Yenikend (on the right bank). The elevation difference between the source and mouth is 2,812 metres (9,226 ft). The river's water is used for irrigation and drinking. Fish like trout and Arctic cisco spawn in the Hikari.