Hugh Seymour may refer to:
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Lord Hugh Seymour (1759–1801), British admiral
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Hugh Henry John Seymour (1790–1821), British Army officer and politician, MP for Antrim 1818–21
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Hugh Seymour, 6th Marquess of Hertford (1843–1912)
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Hugh Seymour, 8th Marquess of Hertford (1930–1997)
{{hndis, Seymour, Hugh