Samuel Willard Beakes (January 11, 1861 – February 9, 1927) was a politician from the U.S. state of Michigan.

Beakes graduated from the law department of the University of Michigan at Ann Arbor in 1883, was admitted to the bar the same year, and commenced practice in Westerville, Ohio.

He was editor and proprietor of the Westerville Review in 1884, of the Adrian, Michigan Daily Record 1884–1886, and of the Ann Arbor Argus 1886–1905.

He successfully contested the election of Mark R. Bacon to the Sixty-fifth Congress and served from December 13, 1917, to March 3, 1919.

After his service in Congress, he resided in Washington, D.C. and was assistant chief of the industrial cooperation service of the United States Department of Commerce from April to July 1919 and a staff member of the United States Veterans' Bureau from 1919 until his death in Washington, D.C., aged 66.