West Sumatra (Indonesian: Sumatera Barat, abbreviated to Sumbar) is a province of Indonesia. It lies on the west coast of the island of Sumatra. The 2010 census recorded its population as 4,846,909, but the latest official estimate for January 2014 shows a population of 5,098,790. Its capital is Padang.

It borders the provinces of North Sumatra (Sumatera Utara) to the north, Riau and Jambi to the east, and Bengkulu to the southeast. It includes the Mentawai Islands off the coast.

Flora and fauna

The province includes large areas of dense tropical forest, which is home to a host of species including: Rafflesia arnoldii (world's largest flower), Sumatran tiger, siamang, Malayan tapir, Sumatran serow, rusa deer, Malayan sun bear, Bornean clouded leopard, and many birds and butterflies.

The province includes two national parks: Siberut National Park and Kerinci Seblat National Park, as well as a number of nature reserves: Rimbo Panti Nature Reserve, Batang Palupuh Nature Reserve, Lembah Anai Nature Reserve, Lembah Harau Nature Reserve, Bung Hatta Grand Forest Park, Beringin Sakti Nature Reserve.