The Ottoman–Persian War of 1821–1823 was fought between the Ottoman Empire and Qajar Iran from 1821 to 1823.

Doğubayazıt is a town of Ağrı Province of Turkey, near the border with Iran. Its elevation is 1625 m. It is the seat of Doğubayazıt District. Its population is 80,061 (2021). Also known as Kurdava, the town was the capital of the self-declared Republic of Ararat, an independent Kurdish state centered in the Ağrı Province.