John T. Dillon is the name of:
John T. Dillon (actor) (1876–1937), American film actor John T. Dillon (businessman) (1938–2023), American business executive John Talbot Dillon (1739–1805), Irish politician and baronet, traveller and historical writer John Talbot Dillon (author) (1734–1806), Anglo-Irish naval officer, traveller and historian
See also John Dillon (disambiguation)