Charles Nelson Herreid (October 20, 1857 – July 6, 1928) was the fourth Governor of South Dakota.

[2] During Herreid's first gubernatorial term, efforts were made to reform the state's penal code, and a reduction in railroad rates helped ease the plight of farmers.

Herreid worked for growth in state schools, Indian care and the development of good roads during his term as governor.

Herreid declined to run for a third term, returning to his law practice in Aberdeen, South Dakota.

In addition to his political activism and engagement in the practice of law, during his lifetime, Herreid was director of the Western Mutual Life Insurance Company, president of Citizens Trust and Savings Bank, Federal Food Administrator for South Dakota, chairman of the South Dakota Military Training Camps Association, trustee of the University of Wisconsin, and a member of the Board of Regents for Education for South Dakota.