Henry Seymour
Henry Seymour may refer to:
United Kingdom
- Henry Seymour (16th-century MP), member of parliament for Hampshire in 1547, brother of Queen Jane Seymour and uncle of Edward VI of England
- Henry Seymour (Langley), friend of Charles II and MP for East Looe
- Henry Seymour (died 1728), English MP
- Henry Seymour (Redland), MP for Totnes, Huntingdon, Evesham, lover of Madame du Barry
- Henry Seymour (Knoyle), MP for Taunton
- Henry Seymour, 9th Marquess of Hertford, British peer
- Henry Seymour, Lord Beauchamp, English nobleman
- Lord Henry Seymour (naval commander), English admiral who fought the Spanish Armada
- Lord Henry Seymour (politician), MP for Coventry, Midhurst, Downton
- Sir Henry Seymour, 1st Baronet, MP for East Looe
- Henry Danby Seymour, MP for Poole
- Henry Seymour (Royal Navy officer), naval commander and politician
- Henry Seymour (secularist), secularist, anarchist and gramophone innovator
Other
- Henry Seymour (New Zealand politician), member of the New Zealand Legislative Council
- Henry W. Seymour, U.S. representative for Michigan
- Henry Seymour (New York politician), New York politician
- Henry Seymour (pastoralist), Irish lawyer migrated to South Australia 1840