波瓦坦县（Powhatan County, Virginia）是位于美国维吉尼亚州中部的一个县。面积680平方公里。根据美国2000年人口普查，共有人口22,377人。县治波瓦坦。

成立于1777年。县名纪念波瓦坦酋长，即宝嘉康蒂的父亲。

Powhatan County (/ˈpaʊ.həˈtæn/) is a county located in the Commonwealth of Virginia. As of the 2010 census, the population was 28,046. Its county seat is Powhatan.

Powhatan County is included in the Greater Richmond Region.

The James River forms the county's northern border, and the Appomattox River is on the south side. The county is named for the paramount chief of the powerful confederacy of tribes of Algonquian-speaking Native Americans in the Tidewater in 1607, when the British settled at Jamestown. Historically this Piedmont area had been occupied by the Siouan-speaking Monacan, who moved west under pressure from colonists. In 1700 French Huguenot refugees settled at their abandoned village, known as Manakin Town, which was located above the falls on the James River.