Gwernach the Giant,
Gwiffert Petit, ally of Geraint,
Gwyddno, Garanhir, King of Gwaelod,
Gwyr, judge in the court of Arthur,
Gyoll, river,
H
Hades, originally the god of the nether world—the name later used to designate the gloomy subterranean land of the dead,
Haemon, son of Creon of Thebes, and lover of Antigone,
Haemonian city,
Haemus, Mount, northern boundary of Thrace,