Samuel Hill, was an American businessman, lawyer, railroad executive, and advocate of good roads. He substantially influenced the Pacific Northwest region's economic development in the early 20th century.

The Sam Hill Memorial Bridge, also known as the Biggs Rapids Bridge, is a steel truss bridge in the northwest United States that carries U.S. Route 97 (US 97) across the Columbia River between Biggs Junction in Sherman County, Oregon, and Maryhill in Klickitat County, Washington. It was named in honor of the early bridge proponent Sam Hill, the builder of the nearby Maryhill Museum of Art.