Oregon Route 229 is an Oregon state highway that runs along the lower reaches of the Siletz River, on the central Oregon coast. The highway is also known as the Siletz Highway No. 181 (see Oregon highways and routes).

Oregon Route 229 begins (at its southern terminus) at a junction with U.S. Route 20 and U.S. Route 20 Business, north of the city of Toledo. It heads north from there, past Olalla Reservoir, meeting the Siletz River in the town of Siletz. From there, it continues north, generally following the course of the river downstream (and crossing it several times), eventually turning west and heading towards the Pacific Ocean. Close to the end of the road is the historic town of Kernville; shortly after, OR 229 ends at an intersection with U.S. Route 101, located between Lincoln City and Gleneden Beach.