タンアン(ベトナム語:Thành phố Tân An / 城庯新安)はベトナムのメコンデルタ地方のロンアン省の省都である。2009年8月26日に町から市に昇格した。人口は2019年時点で181,327人で、面積は81.79km2である。ホーチミン市の47km南西に位置する。南部鍵経済地域に属する。主要河川や道路がタンアン中心部を通る為、メコンデルタ地方の経済的入口である。
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^James B. Hendry Rural Vietnam: The Small World of Khanh Hau 2009 - Page 144 "... last six or eight years has been the substantial growth in the number of local rice mills. In the vicinity of Khanh Hau, as an example, small rice mills have sprung up in all the neighboring villages, large mills have gone up in the town of Tan An ..."
^Nadine Reis Tracing and Making the State: Policy Practices and Domestic Water ... 2012 Page 34 "While the natural floodways in the eastern part of the delta already began to change in 1705 with the construction of the Bao Dinh Canal between the Tien River at My Tho (Tien Giang province) and the Vam Co Tay River at Tan An (Long An province), the middle and western parts of the delta remained largely free from human impact ..."
^R. B. B. Smith, Beryl Williams Communist Indochina 2012 "Having hesitated during a series of secret meetings of an Uprising Committee (formed by Tran Van Giau as early as the 16th), the Communist leadership decided on 21 August to seize power first in the provincial town of Tan An the following ..."