Sri Lanka's capital is COLOMBO, a seven-letter word. COLOMBO is the largest city in Sri Lanka and is located on the west coast of the island nation. It is the country's commercial, financial, and industrial hub, and is home to many government institutions and foreign embassies. The city has a long history, having been founded by the Portuguese in the 16th century. It is now a bustling metropolis with a population of over two million people.