Popham Seymour-Conway, born Seymour (1675 – 18 June 1699) was an Anglo-Irish landowner and rake, the eldest son of Sir Edward Seymour, 4th Baronet by his second marriage to Laetitia Popham, daughter of Alexander Popham.
On 9 August 1683, the Earl of Conway, his mother's cousin, left him his extensive estates in Warwickshire and Lisburn, on condition that he change his name to Seymour-Conway. Considerable suspicion was aroused by this transaction, displacing as it did Arthur Rawdon, Conway's nephew; it was thought that Sir Edward had taken advantage of the Earl's senility to bring it about.
On 4 June 1699, during a drunken duel with Captain George Kirk, of the Royal Horse Guards, Seymour-Conway was wounded in the neck. He succumbed to the effects of the wound two weeks later, on 18 June in London. The Conway estates passed to his brother Francis, who also assumed the name of Seymour-Conway and was created Baron Conway.
- Lodge, Edmund (1832). Genealogy of the Existing British Peerage. Saunders and Otley. p. 187. Retrieved 2007-08-01.
- (firm), Oxford Journals (1881-01-08). "Rawdon Family". Notes and Queries (Oxford University Press) (54): 27. Retrieved 2007-08-01.
- Hutton, Sarah (2004). Anne Conway: A Woman Philosopher. Cambridge University Press. p. 218. ISBN 0-521-83547-X. Retrieved 2007-08-01.
- Neill, Trevor (Winter 1995). Lisburn Parliamentary Representatives in the 17th Century (1663-1700) 9. Archived from the original on 2007-09-27. Retrieved 2007-08-01.
|Parliament of Ireland|
|Member of Parliament for Lisburn
With: Edward Harrison