East Aceh Regency (Indonesian: Kabupaten Aceh Timur) is a regency in eastern Nanggroe Aceh Darussalam. The regency covers an area of 6906 square kilometres and according to the 2000 census had a population of 628,288 people.
This regency is rich in petroleum, more so than the North Aceh and Aceh Tamiang regencies. Fishing employs many people in the regency but little of it is exported; people depend on it for food. The main fishing centre in the regency is in Idl. The regency also has several food-plant based industries producing tofu, tempeh and sun-dried banana chips. Some areas are under plantation exploitation for palm oil and rubber, although there is only one state-owned company (TPN I) operating in the area. Plantations also produce cacao and chocolate and in the Lokop area iron ore and lead is mined.