John Boswall (2 May 1920 – 6 June 2011) was a British actor known for playing Emmanuel Goldstein in 1984 and Wyvern in Pirates of the Caribbean: Dead Man's Chest.

Boswall was born John Stuart on 2 May 1920 in Oxfordshire, England. Prior to his career as an actor, he attended the University of Oxford and served in Burma during World War II.

Boswall's television appearances included Paul Temple (1971), Wessex Tales (1973), Lady Killer (1973), Edward the Seventh (1975), The Onedin Line (1976), Love in a Cold Climate (1980), The Hound of the Baskervilles (1982), Sapphire & Steel (1982), No Place Like Home (1986), EastEnders (1990, 2002), Selling Hitler (1991), Agatha Christie's Poirot (1991), Drop the Dead Donkey (1993), Lovejoy (1993), Poldark (1996), Doctors (2000), Rome (2005) and Terry Pratchett's Hogfather (2006).

Stage appearances included Edward Bond's The Fool at the Royal Court Theatre (1975),[2] Sweeney Todd at the Little Theatre, Bristol (1978–79); Oh, What A Lovely War!, A Midsummer Night's Dream (1979–80), and Kiss Me, Kate (1980–81) at the Bristol Old Vic; Henry IV, Part I (1984–85) at the Theatre Royal, Bath; Doctor Faustus (1974), Cymbeline (1974) and Camille (1985–86) with the Royal Shakespeare Company;[3] and Moliere's Bourgeois gentilhomme (1992) at the Royal National Theatre.

His films included Nineteen Eighty-Four as Emmanuel Goldstein (1984), Three Men and a Little Lady (1990), The Wind in the Willows (1996), The Messenger: The Story of Joan of Arc (1999), Hotel Splendide (2000), Ladies in Lavender (2004), Pirates of the Caribbean: Dead Man's Chest (2006) and Morris: A Life with Bells On (2009).