肯尼贝克河（Kennebec River）是美国东北部缅因州境内的一条240千米长的河流。其发源地是位于缅因州北部的穆斯海德湖，向南流过麦迪逊、斯科希甘、沃特维尔、缅因州州府奥古斯塔和造船中心巴斯。在其入海口它与安德罗斯科金县会合。一直到奥古斯塔潮汐影响肯尼贝克河的水位。

1604年和1605年萨缪尔·德·尚普兰考察过肯尼贝克河。1607年英国在新英格兰设立的第一个殖民点位于其河口。英国殖民者在北美洲建造的第一艘海船是在肯尼贝克河上下水的。

从那时起至今数百条木制的和钢铁的船只在肯尼贝克河上，尤其被被誉为“船城”的巴斯，下水。今天在肯尼贝克河上唯一还存在的造船厂是为美国海军造船的巴斯钢铁厂。

The Kennebec River is a 170-mile-long (270 km) river that is entirely within the U.S. state of Maine.

It rises in Moosehead Lake in west-central Maine. The East and West Outlets join at Indian Pond and the river then flows southward from Harris Station Dam, the largest hydroelectric dam in the state. It is joined at The Forks by the Dead River, also called the West Branch, then continues southward past the cities of Madison, Skowhegan, Waterville, and the state capital Augusta. At Richmond, it flows into Merrymeeting Bay, a 16-mile-long (26 km) freshwater tidal bay into which also flow the Androscoggin River and five smaller rivers. The Kennebec then runs past the shipbuilding center of Bath, then to the Gulf of Maine in the Atlantic Ocean. Ocean tides affect the river height as far north as Augusta. Tributaries of the Kennebec River include the Carrabassett River, Sandy River, and Sebasticook River.