Hanoi ( han-OY; Vietnamese: Hà Nội [hàː nôjˀ] ) is the capital and second-most populous city of Vietnam. The name "Hanoi" translates to "inside the river" (Hanoi is bordered by the Red and Black Rivers). The city encompasses an area of 3,358.6 km2 (1,296.8 sq mi), and as of 2025 has a population of 8,807,523. Hanoi had the second-highest gross...