Kentucky Route 19 is a 23.798-mile-long (38.299 km) state highway in Kentucky that runs from US 62 at the Harrison/Robertson County line to KY 8 in Augusta.

KY 19 straddles the Harrison/Robertson County line for 2.862-mile-long (4.606 km) before entering into Bracken County, where it forms a junction with KY 2897.

Southwest of Brooksville, KY 19 joins KY 10.

KY 19 leaves KY 10 in Brooksville and continues north junctioning with KY 9/AA Highway before entering Augusta and ending at KY 8.