Mianeh County (Persian: شهرستان میانه),[3][a] is in East Azerbaijan province, Iran.

[4] The city of Torkamanchay[b] is where the Treaty of Turkmenchay was signed by Russia and Iran in 1828.

After the 2011 National Census, the village of Achachi was elevated to the status of a city.

[2] Mianeh County's population history and administrative structure over three consecutive censuses are shown in the following table.

Media related to Mianeh County at Wikimedia Commons Iran portal