Tierra del Mar is an unincorporated community in Tillamook County, on the Oregon coast, approximately 25 miles (40 km) south of Tillamook and 4 miles (6.4 km) north of Pacific City and Cape Kiwanda, along Sandlake Road, west of the USA. Route 101.
The community was named by Marie F. Pollock, who began selling lots in the development in 1935. Tierra del mar is Spanish for “land by the sea”. One of the streets in the community is named after Pollock.
In 1990, author Ralph Friedman described Tierra del Mar as a "growing litter of houses."