Colombo ( kə-LUM-boh; Sinhala: කොළඹ, romanised: Koḷam̆ba, IPA: [ˈkoləᵐbə]; Tamil: கொழும்பு, romanised: Koḻumpu, IPA: [koɻumbɯ]) is Sri Lanka's executive and judicial capital, as well as the country's most populous city. It is also the financial centre of the island and a tourist destination. The Colombo metropolitan area is estimated to have a population of 5.6 million, and 752,993 within the municipal limits. It is located on the west coast of the island. It is also the administrative capital of the Western Province and the district capital of Colombo District.
It was made the capital of the island when Sri Lanka was ceded to the British Empire in 1815, retaining its capital status when Sri Lanka gained independence in 1948. In 1978, when administrative functions were moved to Sri Jayawardenepura Kotte, Colombo was designated as the commercial capital of Sri Lanka.
Etymology
The name 'Colombo', first introduced by the Portuguese explorers in 1505, is believed to be derived from the classical Sinhala name කොලොන් තොට, கொல்லம் துறைமுகம் Kolon thota, meaning "port on the river Kelani".
Another belief is that the name is derived from the Sinhala name කොල-අඹ-තොට, பெருங்குடல் துறைமுகம் Kola-amba-thota which means 'Harbour with leafy/green mango trees'.
The author of the oldest Sinhala grammar, Sidatsangarava, written in the 13th century wrote about a category of words that exclusively belonged to early Sinhala. It lists naramba (to see) and kolamba (fort or harbour) as deriving from the indigenous Vedda language. Kolamba may also be the source of the name of the commercial capital Colombo.
History
Traveller Ibn Battuta, who visited the island in the 14th century, referred to it as Kalanpu. Arabs, whose primary interests were trade, began to settle in Colombo around the eighth century AD mostly because the port helped their business by the way of controlling much of the trade between the Sinhalese kingdoms and the outside world. It was popularly believed that their descendants comprised the local Sri Lankan Moor community, but their genetics are predominantly South Indian.
Portuguese era
Portuguese explorers led by Dom Lourenço de Almeida first arrived in Sri Lanka in 1505. During their initial visit they made a treaty with the King of Kotte, Parakramabahu VIII (1484–1518), which enabled them to trade in the island's crop of cinnamon, which lay along with the coastal areas of the island, including in Colombo. As part of the treaty, the Portuguese were given full authority over the coastline in exchange for the promise of guarding the coast against invaders. They were allowed to establish a trading post in Colombo. Within a short time, however, they expelled the Muslim inhabitants of Colombo and began to build a fort in 1517.
The Portuguese soon realised that control of Sri Lanka was necessary for the protection of their coastal establishments in India, and they began to manipulate the rulers of the Kotte kingdom to gain control of the area. After skilfully exploiting rivalries within the royal family, they took control of a large area of the kingdom and the Sinhalese King Mayadunne established a new kingdom at Sitawaka, a domain in the Kotte kingdom. Before long he annexed much of the Kotte kingdom and forced the Portuguese to retreat to Colombo, which was repeatedly besieged by Mayadunne and the later kings of Sitawaka, forcing them to seek reinforcement from their major base in Goa, India. Following the fall of the kingdom in 1593, the Portuguese were able to establish complete control over the coastal area, with Colombo as their capital. This part of Colombo is still known as Fort and houses the presidential palace and the majority of Colombo's five star hotels. The area immediately outside Fort is known as Pettah (Sinhala: පිට කොටුව,Tamil: புறக் கோட்டை piṭa koṭuva, "outer fort") and is a commercial hub.
Dutch era
In 1638 the Dutch signed a treaty with King Rajasinha II of Kandy which assured the king assistance in his war against the Portuguese in exchange for a monopoly of the island's major trade goods. The Portuguese resisted the Dutch and the Kandyans but were gradually defeated in their strongholds beginning in 1639. The Dutch captured Colombo in 1656 after an epic siege, at the end of which a mere 93 Portuguese survivors were given safe conduct out of the fort. Although the Dutch (e.g., Rijcklof van Goens) initially restored the captured area back to the Sinhalese kings, they later refused to turn them over and gained control over the island's richest cinnamon lands including Colombo which then served as the capital of the Dutch maritime provinces under the control of the Dutch East India Company until 1796.
British era
Although the British captured Colombo in 1796, it remained a British military outpost until the Kandyan Kingdom was ceded to them in 1815 and they made Colombo the capital of their newly created crown colony of British Ceylon. Unlike the Portuguese and Dutch before them, whose primary use of Colombo was as a military fort, the British began constructing houses and other civilian structures around the fort, giving rise to the current City of Colombo.
Initially, they placed the administration of the city under a "Collector", and John Macdowell of the Madras Service was the first to hold the office. Then, in 1833, the Government Agent of the Western Province was charged with the administration of the city. Centuries of colonial rule had meant a decline of indigenous administration of Colombo and in 1865 the British conceived a Municipal Council as a means of training the local population in self-governance. The Legislative Council of Ceylon constituted the Colombo Municipal Council in 1865 and the Council met for the first time on 16 January 1866. At the time, the population of the region was around 80,000.
During the time they were in control of Colombo, the British were responsible for much of the planning of the present city. In some parts of the city, tram car tracks and granite flooring laid during the era are still visible today.
After independence
This era of colonialism ended peacefully in 1948 when Ceylon gained independence from Britain. Due to the tremendous impact this caused on the city's inhabitants and on the country as a whole, the changes that resulted at the end of the colonial period were drastic. An entire new culture took root. Changes in laws and customs, clothing styles, religions and proper names were a significant result of the colonial era. These cultural changes were followed by the strengthening of the island's economy. Even today, the influence of the Portuguese, the Dutch and the British is visible in Colombo's architecture, names, clothing, food, language and attitudes. Buildings from all three eras stand as reminders of the turbulent past of Colombo. The city and its people show an interesting mix of European clothing and lifestyles together with local customs.
Historically, Colombo referred to the area around the Fort and Pettah Market which is known for the variety of products available as well as the Khan Clock Tower, a local landmark. At present, it refers to the city limits of the Colombo Municipal Council. More often, the name is used for the Conurbation known as Greater Colombo, which encompasses several Municipal councils including Kotte, Dehiwela and Colombo.
Although Colombo lost its status as the capital of Sri Lanka in the 1980s to Sri Jayawardanapura, it continues to be the island's commercial centre. Despite the official capital of Sri Lanka moving to the adjacent Sri Jayawardanapura Kotte, most countries still maintain their diplomatic missions in Colombo.
Geography
The geography of Colombo consists of both land and water. The city has many canals and, in the heart of the city, the 65-hectare (160-acre) Beira Lake. The lake is one of the most distinctive landmarks of Colombo and was used for centuries by colonists to defend the city. It remains a tourist attraction, hosting regattas, and theatrical events on its shores. The northern and north-eastern border of the city of Colombo is formed by the Kelani River, which meets the sea in a part of the city known as the Modera (mōdara in Sinhala) which means river delta.
Climate
Colombo features a tropical rainforest climate (Af). Colombo's climate is hot throughout the year. From March to April the average high temperature is around 31 °C (87.8 °F). The only major change in the Colombo weather occurs during the monsoon seasons from April to June and September to November, when heavy rains occur. Colombo sees little relative diurnal range of temperature, although this is more marked in the drier winter months, where minimum temperatures average 22 °C (71.6 °F). Rainfall in the city averages around 2,500 millimetres (98 in) a year.
Attractions
Galle Face Green is located in the heart of the city along the Indian Ocean coast and is a destination for tourists and residents alike. The Galle Face Hotel is a historic landmark on the southern edge of this promenade.
Gangaramaya Temple is one of the most important temples in Colombo. The temple's architecture demonstrates an eclectic mix of Sri Lankan, Thai, Indian and Chinese architecture.
The Viharamahadevi Park (formerly Victoria Park) is an urban park located next to the National Museum of Colombo and the Town Hall. It is the oldest and largest park in Colombo and features a large Buddha statue.
As part of the Urban Regeneration Program of the Government of Sri Lanka, many old sites and buildings were revamped into modern public recreational spaces and shopping precincts. These include Independence Memorial Hall Square, Pettah Floating Market and Old Dutch Hospital, among others.
Demographics
Colombo is a multi-religious, multi-ethnic and multi-cultural city. The population of Colombo is a mix of numerous ethnic groups, mainly Sinhalese, Sri Lankan Moor and Sri Lankan Tamils, . There are also small communities of people with Chinese, Portuguese Burgher, Dutch Burgher, Malay and Indian origins living in the city, as well as numerous European expatriates. Colombo is the most populous city in Sri Lanka, with 642,163 people living within the city limits. In 1866 the city had a population of around 80,000.
Government and politics
Local government
Colombo is a charter city, with a mayor-council government. The mayor and council members are elected through local government elections held every five years. The city had historically been ruled by the United National Party (UNP), a right leaning party, whose business-friendly policies resonate with the population of Colombo. However in 2025, the National People's Power won the local elections and Vraîe Cally Balthazaar became mayor. She is the second woman to hold the position, after her predecessor Rosy Senanayake (2018–2023), and leads Colombo under the NPP-JVP alliance, marking the city's first left-wing governance since N.M. Perera (1954–1956).
The city government provides sewer, road and waste management services to the residents. In the case of water, electricity and telephone utility services, the council liaises with the National Water Supply and Drainage Board (NWSDB), the Ceylon Electricity Board (CEB) and telephone service providers operating in the country respectively.
National capital status
Colombo was the capital of the coastal areas controlled by the Portuguese, the Dutch and the British from the 1700s to 1815 when the British gained control of the entire island following the Kandyan convention. From then until the 1980s the national capital of the island was Colombo.
During the 1980s plans were made to move the administrative capital to Sri Jayawardenepura Kotte and thus move all governmental institutions out of Colombo to make way for commercial activities. As a primary step, the Parliament was moved to a new complex in Kotte, with several ministries and departments also relocated. However, the move was never completed.
Today, many governmental institutions still remain in Colombo. These include the President's House, Presidential Secretariat, Prime Minister's House (Temple Trees), Prime Minister's Office, the Supreme Court of Sri Lanka, Central Bank of Sri Lanka, important government ministries and departments; such as Finance (Treasury), Defence, Public Administration & Home affairs, Foreign affairs, Justice and the Military headquarters, Naval headquarters (SLNS Parakrama), Air Force headquarters (SLAF Colombo) and Police national and field force headquarters.