Hanoi, also spelled Ha Noi, city, capital of Vietnam. The city is situated in northern Vietnam. Hanoi, the capital of Vietnam, is known for its centuries-old architecture and a rich culture with Southeast Asian, Chinese and French influences. At its heart is the chaotic Old Quarter, where the narrow streets are roughly arranged by trade. There are many little temples, including Bach Ma, honoring a legendary horse, plus Đồng Xuân Market, selling household goods and street food.

The region around present-day Hanoi was settled in prehistoric time. On July 2, 1976, the Socialist Republic of Vietnam was proclaimed, and Hanoi was established as its capital. The city observed its 1,000th anniversary in early October 2010 by staging a number of events that culminated with a massive parade on October 10.