Rokan Hulu is a regency (kabupaten) of Riau, Indonesia. It is located on the island of Sumatra. Rokan Hulu Regency was created on 4 October 1999 as a result of the division of Kampar Regency, of which it was previously the western 24%. The new Regency was established under Law No. 53 of 1999 and Law No. 11 of 2003 on changes to Law Decree No. 53 of 1999, which is reinforced by the Constitutional Court Decision No. 010 / PUU-1/2004, dated 26 August 2004. It mainly occupies the upper part of the catchment area of the Rokan River, and has an area of 7,588.13 km². It had 474,843 inhabitants at the 2010 Census and 561,385 at the 2020 Census; the official estimate as at mid 2022 was 582,679. The administrative centre of the regency is located at Pasir Pengaraian.

Riau is a province of Indonesia. It is located on the central eastern coast of Sumatra along the Strait of Malacca. The province shares land borders with North Sumatra to the northwest, West Sumatra to the west, and Jambi to the south, and a maritime border with the Riau Islands and the country of Malaysia to the east. It is the second-largest province in the island of Sumatra after South Sumatra, and is slightly larger than Jordan. According to the 2020 census, Riau had a population of 6,394,087 across a land area of 89,935.90 km²; the official estimate of population as of mid-2022 was 6,614,384. The province comprises ten regencies and two cities, with Pekanbaru serving as the capital and largest city.