Gorboduc (Welsh: Gwrvyw) was a legendary king of the Britons as accounted by Geoffrey of Monmouth. He was married to Judon. At an old age, he became senile and his sons, Ferrex and Porrex, feuded over who would take over the kingdom. During this Civil War, he died and the war continued for many years.

See also: Gorboduc for the play from 1561.