The Energy Regulators Regional Association (ERRA) is a voluntary organization comprised of independent energy regulatory bodies primarily from the Central European and Eurasian region, with Affiliates from Asia and the Middle East.

ERRA began as a cooperative exchange among 12 energy regulatory bodies. The U.S. National Association of Regulatory Utility Commissioners (NARUC), through a Cooperative Agreement with the US Agency for International Development (USAID), has been providing technical forums, meetings and study tours for the energy regulators of the above region since 1999. During these meetings, the participants expressed the need for an association similar to NARUC that could offer a more formal platform for exchanging experiences and ideas to better learn from each other's experiences. In 1999, an ad-hoc Steering Committee began development of the structural and operational elements of the future association, including its purpose and objectives. In December 2000, a Constitution was signed by 15 members that established the ERRA in Bucharest. 

To date ERRA lists 23 Full, 3 Associate and 3 Affiliate Members. The Association was legally registered in Hungary in April 2001 and its Secretariat operates in Budapest. NARUC and USAID have been providing continuous support for the operation of the Association.