Kentucky Route 90 (KY 90) is a major east–west state highway in southern Kentucky. The route is 134.734 miles (216.833 km) long, and it traverses Barren, Metcalfe, Cumberland, Clinton, Wayne, Pulaski, McCreary and Whitley Counties in southern Kentucky. It runs from the KY 70 junction near Interstate 65 in Cave City to US 25W about 8 miles (13 km) from Interstate 75.