John S. Tanner may refer to:
John Tanner (Tennessee politician) (John Sumners Tanner, born 1944), U.S. representative from Tennessee John Sigismund Tanner (1705–1775), engraver to the Royal Mint, born in Coburg John Sears Tanner (born 1950), president of Brigham Young University–Hawaii
See also John Tanner (disambiguation)