Colombo (Sinhala: කොළඹ, ; ) is the largest city and commercial capital of Sri Lanka. It is located on the west coast of the island and adjacent to Sri Jayawardenepura Kotte, the capital city of Sri Lanka. Colombo is a busy and vibrant city with a mixture of modern life and colonial buildings and ruins and a city population of 647,100. Census July 17, 2001 (via citypopulation.de) The Colombo Metropolitan Region, defined by the districts of Colombo, Gampaha and Kalutara, h… (More on Colombo)