John Slaughter may refer to:

• John Brooks Slaughter (born 1934), American engineer, Director of National Science Foundation, 1980–1982
• John Bunyan Slaughter (1848-1928), American rancher and banker.
• John Horton Slaughter (1841–1922), American lawman, Civil War soldier and gambler known as Texas John Slaughter
• Texas John Slaughter (TV series) series on Wonderful World of Disney, 1958–1961
• John Slaughter (MP), Member of Parliament (MP) for Gloucestershire
• John Slaughter (guitarist) (1944-2010), member of Chris Barber's jazz band

This disambiguation page lists articles associated with the title John Slaughter.
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