Chayly (Azerbaijani: Çaylı, also Chaylu) or Aygestan (Armenian: Այգեստան) is a village in the Aghdara District of Azerbaijan, in the disputed region of Nagorno-Karabakh.

Prior to 2023, the village was on the ceasefire line between the armed forces of the breakaway state Republic of Artsakh and those of Azerbaijan.

The village was founded in 1827 by Armenians who fled from the Iranian Khoy County north of Lake Urmia and resettled in the Russian Empire.

During the First Nagorno-Karabakh War, the village's Armenian population fled after Azerbaijani troops stormed the settlement on 16 June 1992.

[1] In 2001, refugees from the village founded a new settlement they named Nor Aygestan (Armenian: Նոր Այգեստան, lit.