Hywel or Huwel ([ˈhəuɛl]), sometimes anglicized as Howel, is a Welsh masculine given name. It may refer to:
Hoel Mawr (6th century), a figure of Breton history and Welsh and Arthurian legend
Saint Hywel, a sixth-century disciple of Saint Teilo
Hywel ap Rhodri Molwynog, 9th-century king of Gwynedd
Hywel Dda or Hywel the Good (died 950), king of Deheubarth and much of the rest of Wales, famed as a lawgiver
Huwal of the West Welsh, 10th-century Welsh king, possibly identical to Hywel Dda
Hywel ab Owain Gwynedd (died 1170), Welsh poet and military leader
Hywel Bennett (born 1944), Welsh actor
Hywel Harris (1714–1773), Welsh Methodist preacher
Hywel Evans (born 1945), Welsh figure skater
Hywel David Evans (born 1928), Australian politician