Elen verch Gwilym Fychan
- Born: Abt 1404
- Marriage (1): William Bulkeley Esq., of Cheadle, Constable of Beaumaris Castle
Other names for Elen were Elin verch Gwilym and Ellin verch Gwilym ap Griffith of Penrhyn.
Source: A Genealogical History of the Dormant, Abeyant, Forfeited, and Extinct Peerages of the British Empire by Sir [John] Bernard Burke, London, 1866, pp. 85-86
Elen married William Bulkeley Esq., of Cheadle, Constable of Beaumaris Castle.