Samuel W. Johnson may refer to:
*
Samuel Waite Johnson (1831–1912), English railway engineer
*
Samuel William Johnson
Samuel William Johnson (3 July 1830 Kingsboro, New York – 1909) was a U.S. American agricultural chemist. He promoted the movement to bring the sciences to the aid of American farmers through agricultural experiment stations and education in ...
(1830–1909), Agricultural chemist at Yale
*
Sam Johnson (footballer, born 1992), English footballer
{{hndis, Johnson, Samuel W.