荃湾（英语：Tsuen Wan）位于香港新界西南，荃湾新市镇及荃湾区的主要部份，位于香港都会区范围之内。

据前香港市政局出版的《香港文物》，荃湾内的柴湾角街等地曾发掘到汉代文物。

荃湾，古称浅湾，据说因此地海湾水浅而得名。浅湾亦屡见于宋朝、明朝和清朝的地图和文献，包括填海录，厓山集，宋史新编，南宋史和新安县志等。

景炎二年（1277年）九月至十一月南宋皇帝宋端宗由古瑾来到浅湾，当中一名曹姓大臣在横过水潭时不慎滑倒溺毙，后人便将该潭命名为曹公潭以作纪念。十月或十一月元朝元帅刘深带舟师到浅湾。而另有传说刘深由城门一路攻入，而乡民筑起石城抗击元军，因有城门此称。

Tsuen Wan (formerly also spelled Tsun Wan) is a new town built on a bay in the New Territories area of Hong Kong, opposite to Tsing Yi Island across Rambler Channel. The market town of Tsuen Wan emerged for the surrounding villages and fleets of fishing boats in the area. The now crowded city is around the present-day Tsuen Wan Station of the MTR. It was extended as far as the reclamation proceeded.