John Roper

• John Roper, 1st Baron Teynham, English nobleman
• John Roper, Baron Roper, British politician
• John Roper (American football), former American football linebacker
• John Roper (baseball), Major League Baseball pitcher
• John Roper (British diplomat), former British ambassador to Luxembourg
• John Roper (explorer), Australian explorer
• John Herbert Roper, American historian and author
• John W. Roper, Vice Admiral in the United States Navy
• John Charles Roper, Anglican bishop