John Clapham

John Clapham may refer to:


 * John Clapham (historian and poet) (1566–1619), English historian and poet
 * John Greaves Clapham (1790s–1854), businessman and political figure in Lower Canada and Canada East
 * John Peele Clapham (1801–1875), English solicitor and justice of the peace
 * John Harold Clapham (1873–1946), British economic historian