Ho Chi Minh City (HCMC; Vietnamese: Thành phố Hồ Chí Minh), commonly known as Saigon (Vietnamese: Sài Gòn), is the most populous city in Vietnam with a population of around 10 million in 2023. The city's geography is defined by rivers and canals, of which the largest is Saigon River. As a municipality, Ho Chi Minh City consists of 16 urban districts, five rural districts, and one municipal city (sub-city). As the largest financial centre in Vietnam, Ho Chi Minh City has the largest gross regional domestic product out of all Vietnam provinces and municipalities, contributing around a quarter of the country's total GDP. Ho Chi Minh City's metropolitan area is ASEAN's 5th largest economy, also the biggest outside an ASEAN country capital.
The area was initially part of Cambodian states until it became part of the Vietnamese Nguyễn lords in 1698, due to Đại Việt's expansionist policy of Nam tiến. It was capital of the Nguyễn lords at the end of their existence before the Nguyễn dynasty was formed. After the fall of the Citadel of Saigon, it became the capital of French Cochinchina from 1862 to 1949. It was also the capital of French Indochina from 1887 to 1902, and again from 1945 until its cessation in 1954. After France recognized Vietnam's independence and unity, it was the capital of the State of Vietnam from 1949 to 1955. Following the 1954 partition, it became the capital of South Vietnam until it was captured by North Vietnam, who created a unified communist state in 1976 and renamed the city after their former leader Hồ Chí Minh, though the former name is still widely used in informal usages. Beginning in the 1990s, the city underwent rapid expansion and modernization, which contributed to Vietnam's post-war economic recovery and helped revive its international trade hub status.
Ho Chi Minh City has a long tradition of being one of the centers of economy, entertainment and education in Southern Vietnam in particular and Vietnam in general. As such, the city is also the busiest international transport hub in Vietnam, as Tân Sơn Nhất International Airport accounts for nearly half of all international arrivals to Vietnam and the Port of Saigon is among the busiest container ports in Southeast Asia. Ho Chi Minh City is also a tourist attraction. Some of the war and historic landmarks in the city include the Independence Palace, Landmark 81 (tallest building in Vietnam), the War Remnants Museum, and Bến Thành Market. The city is also known for its narrow walkable alleys and bustling night life. Currently, Ho Chi Minh City is facing increasing threats of sea level rise and flooding as well as heavy strains on public infrastructures.

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