James Douglas McKay (June 24, 1893 – July 22, 1959) was an American businessman and politician from Oregon. He served in World War I before he became a successful businessman, mainly as a car dealership owner in the capital city of Salem. A Republican, he served as a city councilor and mayor of Salem before election to the Oregon State Senate. McKay served four terms in the state senate, also fought in World War II, and was then elected as the 25th Governor of Oregon in 1948. He left that office before the end of his term when he was selected as the 35th U.S. Secretary of the Interior during the Eisenhower administration.