Tonkin (disambiguation)
Tonkin is an exonym for Northern Vietnam. Tonkin may also refer to: == Vietnam == Đông Kinh, a former name of Hanoi, Vietnam the French protectorate of Tonkin, the northern part of French Indochina Gulf of Tonkin, a gulf in the South China Sea Gulf of Tonkin incident, a 1964 naval incident that precipitated the Gulf of Tonkin Resolution Gulf of Tonkin Resolution, the 1964 resolution of the US Congress that precipitated the buildup of US forces in Vietnam In France, the Sino-French War (1884–1885) is termed the Tonkin War.