Tonkin (disambiguation)

Tonkin refers to:

;Vietnam:

*"Đông Kinh", a former name of Hanoi, Vietnam
*Tonkin, the northernmost part of Vietnam
*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
*For the "Battle of Tonkin" and the "Tonkin Affair" of 1885, see Battle of Bang Bo.
*In France, the Sino-French War is termed the "Tonkin War".

;Persons:

*Anthony Tonkin (b. 1980), English professional football player
*David Tonkin (1929–2000), Premier of South Australia 1979–1982
*Felicity Tonkin (b. 1985), daughter of Mark Phillips and Heather Tonkin
*Humphrey Tonkin (b. 1939), American-British professor and Esperantist
*John Tonkin (1902–1995), Premier of Western Australia 1971–1974
*Phoebe Tonkin (contemporary), Australian actress
*William Tonkin (1897– [?] ), British copperworker

;Other:
*Tonkin Highway, a major arterial road in Perth, Western Australia
*Tonkin Street in Hong Kong
*Tonkinese (cat), cat breed