K-148 is a state highway in the U.S. state of Kansas.

The route begins at K-28 north of Randall and east of Jewell and heads east through the unincorporated towns of Kackley and Norway. After crossing US-81, K-148 goes through the unincorporated town of Wayne and the incorporated town of Agenda. At the intersection of K-15 and K-9, K-148 begins a concurrency with K-9 that lasts 10 miles (16 km). Just east of Barnes, K-148 turns north, passing just to the east of Hanover before ending at the Nebraska state line. The road continues as Nebraska Highway 112.

The western branch of the road was a county road. It first appeared on the Kansas state map in 1956. The road between the K-9/K-15 intersection to the Nebraska line was marked as K-15E until sometime between 1987 and 1991.