LeydonLeydon is a surname. Notable people with the surname include: Joe Leydon, American film critic and historian John Leydon, Irish civil servant Mona Leydon, New Zealand swimmer Seamus Leydon, Gaelic footballer Felicity Leydon-Davis, New Zealand cricketer Oliver Leydon-Davis, New Zealand badminton player Susannah Leydon-Davis, New Zealand badminton player