The Western Province is one of the nine provinces of Sri Lanka, the first level administrative division of the country. The provinces have existed since the 19th century but did not have any legal status until 1987 when the 13th Amendment to the Constitution of Sri Lanka established provincial councils. Western Province is the most densely populated province in the country and is home to the legislative capital Sri Jayawardenepura Kotte as well as to Colombo, the nation's administrative and business center.

Sri Jayewardenepura Kotte, commonly known as Kotte, is the legislative capital of Sri Lanka. Sri Jayawardenepura Kotte is located adjacent to the urban area of Sri Lanka's de facto economic, executive, and judicial capital, Colombo.