John Pennington

• John Pennington, 1st Baron Muncaster, British peer and Tory politician
• John L. Pennington, American newspaper publisher, politician, and the fifth Governor of Dakota Territory
• John Penington, or Pennington, English naval officer
• John Pennington, 3rd Baronet, British Member of Parliament for Cumberland
• John Kenneth Pennington, priest, lecturer of St Mary's Church, Nottingham and Sheriff of Nottingham 1982-1983
• John Pennington , Australian politician