Arthur Mastick Hyde (July 12, 1877–October 17, 1947) was an American Republican politician who served as Governor of Missouri and U.S. Secretary of Agriculture

Hyde was born in Princeton, Missouri. He became a lawyer and served as the Governor of Missouri from 1921 to 1925. Later he served as the Secretary of Agriculture under President Herbert Hoover. He died in New York City following cancer surgery in 1947.

Some of his family members were also involved in politics. His father, Ira B. Hyde, was a representative from Missouri, and his brother, Laurance M. Hyde, was a chief justice of the Missouri supreme court.

|- style="text-align: center;" | width="30%" |Preceded by:
William Marion Jardine | width="40%" style="text-align: center;" |United States Secretary of Agriculture
1929–1933 | width="30%" |Succeeded by:
Henry Agard Wallace