Bengkalis Regency

Bengkalis Regency is a regency of Indonesia in Riau Province. The regency was originally established in 1956 and then included most of the northern part of the province, but on 4 October 1999 it was divided up, with most of the territory being split off to form the new Rokan Hilir Regency, Siak Regency and the city of Dumai. On 19 December 2008 a further five districts were removed to create the new Meranti Islands Regency, leaving eight districts (or kecamatan) in the Bengkalis Regency. These eight districts has increased since 2010 to eleven by the splitting of existing districts on the Sumatran mainland.

Bengkalis Regency produces natural resources, particularly petroleum, rubber, and coconut. The southern part of this regency contains a large part of the Bukit Batu Biosphere Reserve.