John Roper may refer to:
John Roper, 1st Baron Teynham (died 1618), English nobleman John Roper, Baron Roper (1935–2016), British politician John Roper (American football) (born 1965), former American football linebacker John Roper (baseball) (born 1971), Major League Baseball pitcher John Roper (British diplomat), former British ambassador to Luxembourg John Roper (explorer) (c. 1822–1895), Australian explorer John Herbert Roper, American historian and author John W. Roper (1898–1963), Vice Admiral in the United States Navy John Charles Roper (1858–1940), Anglican bishop