Roderick Stephens, Jr. (August 7, 1909 - January 10, 1995) was one of America's best known and respected sailors. In 1933, he became associate designer of the Sparkman & Stephens naval architecture and yacht design firm. He later became president of this company founded by his brother Olin Stephens and Drake Sparkman.
He sailed and helped design of the America's Cup yachts Ranger in 1937, Columbia in 1958, and Constellation in 1964.
Born in New York City, he received the Medal of Freedom, the United States' highest civilian award, for his contributions during World War II for his design and engineering of the DUKW ("duck") military amphibious vehicle.