Elmer Austin Benson (born September 22, 1895) was a United States senator from the state of Minnesota. A member of the Farmer-Labor Party, he served a single term in the U.S. Senate from December 27, 1935, to January 3, 1937. During this period, he represented Minnesota at the federal level as a historical member of Congress.

Benson’s tenure in the Senate placed him within the Farmer-Labor political tradition, which was influential in Minnesota during the early twentieth century. Serving as a senator for Minnesota from 1935 to 1937, he participated in national legislative affairs at a time when third-party movements played a notable role in the state’s political landscape. His service in the Senate lasted for one term, and he is recorded as a former officeholder under the bioguide identification number B000389.