卡诺瓦县（Kanawha County, West Virginia）是位于美国西维吉尼亚州中西部的一个县。面积2,359平方公里。根据美国人口调查局2000年统计，共有人口200,073人。县治查尔斯顿也是州的首府。

成立于1789年。县名是印第安语，意思是「白石之地」。

Kanawha County (/kəˈnɔː/ kə-NAW or /kəˈnɔːə/ kə-NAW-ə) is a county located in the U.S. state of West Virginia. As of the 2010 census, the population was 193,063, making it the most populous county in West Virginia. Its county seat is Charleston, the state capital.