Kavanaugh, Kentucky is an unincorporated community located in Boyd County, Kentucky, located along U.S. Route 23 directly north of the Lawrence County line.

CSX Transportation's Big Sandy Subdivision railroad tracks pass through the community.

The railroad was formerly operated by the Chessie System and its predecessor the Chesapeake and Ohio Railway Company.

The community is named after the historic Kavanaugh Chapel United Methodist Church and cemetery which has been a local landmark there since it was formed in 1866.

The Kavanaugh School was held in the same log cabin as the church for many years.