S. B. Fuller (June 4, 1905 – October 24, 1988) was an American entrepreneur. He was founder and president of the Fuller Products Company, publisher of the New York Age and Pittsburgh Courier, head of the South Side Chicago NAACP, president of the National Negro Business League, and a prominent black Republican.
S. B. Fuller's life was an illustration of business success and self-help. His company gave inspiration and training to countless aspiring entrepreneurs and future leaders, including John H. Johnson of Johnson Publishing, George Ellis Johnson founder of Johnson Products, and Dr. T. R. M. Howard. Joe L. Dudley Senior of Greensboro, North Carolina had a similar business, the Dudley Products Company, which was a major distributor of Fuller products and also offered products of its own and kept the Fuller Products name alive after the end of S. B. Fuller's career.