Gwynneth is a given name. Notable people with the name include:
Gwynneth Vaughan Buchanan (1886–1945), Australian zoologist Gwynneth Coogan (born 1965), American former Olympic athlete, educator and mathematician Gwynneth Flower, former chair of the National Meteorological Programme Gwynneth Holt (1909–1995), British artist of ivory sculptures on religious subjects Emma Gwynneth Ineson, QHC (born 1969), British Anglican bishop and academic, specialising in practical theology Helen Gwynneth Palmer (1917–1979), prominent Australian socialist publisher Gwynneth Smith (born 1965), Irish former cricketer
See also John Gwynneth (or Guinete) (1511–1557), clergyman of Welsh nationality originating from Gwynedd Gwyneth