Siward may refer to:

Synardus or Siward (12th-century), king of Götaland Siward (Abbot of Abingdon) (died 1048), Bishop of St. Martins Siward, Earl of Northumbria (died 1055), Anglo-Scandinavian earl of Northumbria (also portrayed as a character in Shakespeare's Macbeth) Siward (bishop of Rochester) (died 1075) Bishop of Rochester Siward Barn (fl. 1066–1087), English resistor to William the Conqueror Richard Siward (died 1248), 13th-century soldier Young Siward, a character in William Shakespeare's play Macbeth Siward, king of Norway, a probably fictional figure in the Gesta Danorum; see Lagertha

See also

Seward (disambiguation) Sigurd (disambiguation)