Daviess County ( "Davis"), is a county in Kentucky. As of the 2020 census, the population was 103,312. Its county seat is Owensboro. The county was formed from part of Ohio County on January 14, 1815.

U.S. Route 431 in Kentucky runs 86.93 miles (139.90 km) from the Tennessee state line south of Adairville to US 60 at Owensboro. It crosses the state in mainly west-central portions of the state, passing through or near towns such as Russellville, Lewisburg, Central City and Livermore. The route goes through Logan, Muhlenberg, McLean, and Daviess counties.