John Plumb (disambiguation)

John Plumb may be:


 * John Plumb (1927–2008), British abstract painter
 * John Plumb (politician) (1846–1891), Australian politician
 * John H. Plumb (1911–2001), British historian
 * John Plumbe (sometimes Plumb; 1809–1857), Welsh-born American photographer, gallerist, and publisher