Kentucky Route 39 is a state highway in the U.S. state of Kentucky. The route, part of the State Secondary System, exists in two segments, separated at the Madison-Jessamine county line by the Kentucky River. While there is a boat ramp on each side, there is no bridge or ferry carrying vehicular traffic across the waterway. The southernmost terminus of the route is at Kentucky Route 1247 in Somerset. The northernmost terminus is at U.S. Route 27 Business and Kentucky Route 29 in Nicholasville.