State Route 516 (SR 516) is a 16.49-mile-long (26.54 km) state highway in the U.S. state of Washington, serving communities in southern King County. The highway travels east as the Kent-Des Moines Road and the Kent-Kangley Road from a concurrency with SR 509 in Des Moines through Kent and Covington to an intersection with SR 169 in Maple Valley.