James Smyth
James Smyth may refer to:
- Sir James Smyth (English MP), English member of parliament for Exeter and Camelford
- Sir James Smyth, 1st Baronet, sheriff of Sussex 1714–15
- James Smyth (Irish MP), Irish member of parliament for Antrim and Dundalk
- James Smyth (priest), Anglican priest in Ireland
- James Carmichael Smyth (physician), Scottish medical writer and physician to King George III
- Sir James Carmichael-Smyth, 1st Baronet, his son, British colonial administrator
- James Adger Smyth, mayor of Charleston, South Carolina
- Red Smyth, American baseball player
- James G. Smyth, American politician
- Jimmy Smyth (hurler), Irish hurler
- James Smyth (rugby union), Irish international rugby union player