Clear Lake is a natural body of water impounded by sand dunes along the Oregon Coast of the Pacific Ocean in the United States.

Clear Lake is closed to public access to protect the purity of the water.

[1] The community of Winchester Bay is north of the lake; Umpqua Lighthouse State Park and the mouth of the Umpqua River are to the northwest, and Oregon Dunes National Recreation Area runs along the coast to the west.

[1] Clear Lake, at 229 feet (70 m) above sea level, is the highest of several lakes formed by dunes encroaching on Clear Creek's ancestral valley.

[1] Water from this string of lakes, including Eel Lake and Tenmile Lake, flows generally south into Tenmile Creek in Coos County, which flows west into the Pacific near the community of Lakeside.