The Oregon Coast Scenic Railroad (OCSR) is a heritage railroad, a 501(c)(3) non-profit organization, operating in Oregon, US, primarily between Garibaldi and Rockaway Beach, with additional special trips to Wheeler, Nehalem River and into the Salmonberry River canyon. The railroad travels on tracks that pass along the edge of Tillamook Bay and the Oregon Coast, and through thick forest along the Nehalem River. The OCSR runs its collection of vintage rail equipment over 46 miles (74 km) of former Southern Pacific Transportation Company track under a lease from the Port of Tillamook Bay Railroad (POTB), an entity distinct from the OCSR. Garibaldi Station is the only station on the system equipped with a wheelchair lift.

The Port of Tillamook Bay Railroad is a shortline railroad in northwestern Oregon in the United States. It was established in 1952 to handle switching in Tillamook, Oregon, and came to greater prominence in 1986 when it leased 94 miles (151 km) of the Southern Pacific Railroad's Tillamook branch.