Ho Chi Minh City (Vietnamese: Thành Phố Hồ Chí Minh), commonly known as Saigon (Vietnamese: Sài Gòn) or by the abbreviations HCMC or HCM, is the largest city in Vietnam and the former capital of the Republic of Vietnam (South Vietnam). Around 9,000,000 people live in the HCMC metropolitan area.
Following the fall of Saigon in 1975, Saigon was renamed Ho Chi Minh City. However, the old Saigon name is still used by both Vietnamese and foreigners, especially when referring to the most central part of the city, District 1.
HCMC lies on the banks of the Saigon river. The city has a tropical climate, with an average humidity of 75% and a rainy season that lasts from May to October.