The Melayu Kingdom was a classical Buddhist kingdom located in what is now the Indonesian province of Jambi in Sumatra.

Jambi is a province of Indonesia. It is located on the east coast of central Sumatra and stretches to the Barisan Mountains in the west. Its capital and largest city is also called Jambi. It is bordered by the provinces of Riau to the north, West Sumatra to the west, Bengkulu to the southwest, South Sumatra to the south, and shares a maritime border with the Riau Islands to the east and the Pacific Ocean to the east. The province has a land area of 49,026.58 km2, and a sea area of 3,274.95 km2. Its area is comparable to the European country of Slovakia. It had a population of 3,092,265 according to the 2010 census and 3,548,228 according to the 2020 census; the official estimate of population as of mid-2023 was 3,679,169.