State Route 161 (SR 161) is a 36.25-mile-long (58.34 km) state highway serving Pierce and King counties in the U.S. state of Washington. The highway begins at SR 7 southwest of Eatonville and travels north as Meridian Avenue to Puyallup, becoming concurrent with SR 512 and SR 167. SR 161 continues northwest as the Enchanted Parkway to end at an intersection with SR 18 in Federal Way, west of Interstate 5 (I-5).