Lumla Assembly constituency is one of the 60 assembly constituencies of Arunachal Pradesh, a northeastern state of India. It is part of Arunachal East Lok Sabha constituency.
As per Delimitation Commission of India report 2008, No 1 Lumla(ST) consists of Lumla circle excluding villages Bongleng and Kharung, Zemithang circle and Kudung, Pamaghar, Sakpret and Thongleng villages of Tawang Circle.