Morgannwg may refer to: Glamorgan, a historic county in south Wales, called in Welsh Kingdom of Morgannwg, a medieval kingdom in the same area Morgannwg (journal), the journal of the Glamorgan History Society Iolo Morganwg (1747–1826), a Welsh antiquarian and poet
See also Coleg Morgannwg, a former further education college in Rhondda Cynon Taf Glamorgan (disambiguation)