W. B. Nelson State Recreation Site, Public recreation site in Waldport, Oregon, United States

W. B. Nelson State Recreation Site is a state park on the lower Alsea River in Lincoln County, western Oregon, near Waldport. It lies about 7 metres above sea level, with wooded hills to the west and flatter ground toward the coast. The Oregon Parks and Recreation Department administers the site.

The site became part of Oregon's state park system in 1959 through a donation from W. B. Nelson, who wanted to preserve the natural landscape. This gift secured protection for the lake and surrounding wetlands for public use.

The site lies on the lower Alsea River about 3 km east of Waldport, in Lincoln County, and is managed by the Oregon Parks and Recreation Department. Its name honours W. B. Nelson, who gave the land to the state in 1959 so the lake and wetlands would stay open to the public.

The site offers day-use access with picnic areas and accessible paths suitable for visitors of all abilities. The paths are easy to walk during daytime hours, and facilities are straightforward to use without advance planning needed.

The wetlands serve as a major stopping point for waterfowl migration, with numerous species resting here during their seasonal journeys. Many visitors bring binoculars to watch the various duck, heron, and diving bird species that gather in the marshes.