Tianjin, a municipality in China, is also spelled Tientsin.

Tientsin may also refer to:

Battle of Tientsin, a 1900 battle of the Boxer Rebellion Chinese dispatch boat Tientsin, launched in 1863 Langfang, known as Tientsin Prefecture until 1973 Tien Tsin, a ship which brought European settlers to Port Walcott, Western Australia Tien Tsin Harbour, now Port Walcott Tien Tsin, now Cossack, Western Australia, a ghost town

See also Tianjin Massacre, a massacre of Christians in the late 19th century Tientsin Conference, series of conferences of Chinese warlords, beginning in 1924 Tientsin Mystic, Chinese TV series