Arthur Mastick Hyde (July 12, 1877 – October 17, 1947) was an American Republican politician, who served as the 35th governor of Missouri from 1921 to 1925, and as the United States secretary of agriculture for President Herbert Hoover from 1929 to 1933.

Several of Arthur's family members were involved in politics; his father, Ira B. Hyde, was the U.S. representative from Missouri.

During his first month as governor, Hyde recommended extensive reorganization of state government by regrouping responsibilities into a few departments.

Although challenged by Democratic Party bosses, his administration made advances in public education, roads, state parks, conservation, law enforcement, and equitable taxes.

[1] Arthur Hyde died in New York City, after cancer surgery on October 17, 1947, at age 70.