- EMRYS-ROBERTS, EDWARD (1878 - 1924), Athro patholeg a bacterioleg cyntaf yr Ysgol Feddygol Gymreig Genedlaethol
- ENDERBIE, PERCY (c. 1606 - 1670), hanesydd a hynafiaethydd
- ENOCH, SAMUEL IFOR (1914 - 2001), gweinidog (Presbyteriaid) ac athro diwinyddol
- EOS BRADWEN - gweler JONES, JOHN
- EOS CEIRIOG - gweler MORYS, HUW
- EOS CYMRU - gweler WYNNE, SARAH EDITH
- EOS DÂR - gweler EVANS, DANIEL
- EOS EBRILL - gweler LEWIS, REES
- EOS EWIAS - gweler PARRY, JAMES RHYS
- EOS EWYAS - gweler PARRY, JAMES RHYS
- EOS EYAS - gweler PARRY, JAMES RHYS
- EOS GLAN TWRCH - gweler EDWARDS, JOHN
- EOS GLAN WYRE - gweler LEWIS, JOHN
- EOS GLYN WYRE - gweler LEWIS, JOHN
- EOS GWYNEDD - gweler THOMAS, JOHN
- EOS GWYNFA - gweler WILLIAMS, THOMAS
- EOS IAL - gweler HUGHES, DAVID
- EOS LLECHID - gweler DAVIES, OWEN HUMPHREY
- EOS LLYFNWY - gweler WILLIAMS, FOULK ROBERT
- EOS LLYFNWY - gweler ROBERTS, ELLIS
- EOS MALDWYN - gweler HUGHES, EDWARD
- EOS MORLAIS - gweler REES, ROBERT
- EOS TEGEINGL - gweler ELLIS, THOMAS
- EOS TWROG - gweler ROBERTS, LEWIS
- EOS Y GOGLEDD - gweler JONES, WILLIAM OWEN
- EOS Y MYNYDD - gweler WILLIAMS, THOMAS
- ERBERY, WILLIAM (1604 - 1654), Piwritan ac Annibynnwr
- ERFYL - gweler JONES, HUGH
- ERFYL FYCHAN - gweler JONES, ROBERT WILLIAM
- ERYR CRAIG Y LLYN - gweler DAVIES, LEWIS
- ERYR ERYRI - gweler GRIFFITH, OWEN
- ERYRON GWYLLT WALIA - gweler OWEN, ROBERT
- ESSEX, Ieirll - gweler DEVEREUX
- ETA DELTA - gweler DAVIES, EVAN
- ETHÉ, CARL HERMANN (1844 - 1917), ysgolhaig
- EUDDOGWY (fl. niwedd y 6ed ganrif), sant
- Eugenius Philalethes - gweler VAUGHAN, THOMAS
- EUROF - gweler WALTERS, DAVID
- EURYS ROLANT - gweler ROWLANDS, EURYS IONOR
- EUTUN, OWAIN (fl. c. 15fed ganrif), bardd
- EVAN AB EDNYVED AP HOWELL (bu farw 1403) - gweler WYNN
- EVAN(S), EDWARD (1716 - 1798), gweinidog Presbyteraidd, a bardd
- EVAN, EDWARD - gweler EVANS, EDWARD
- EVAN, EVAN DAFYDD (fl. 1771-9), cynghorwr Methodistaidd
- EVAN(S), JAMES (Carneinion; 1814 - 1842) Trefgarn, pregethwr cynorthwyol gyda'r Annibynwyr, ac awdur
- EVAN, JAMES - gweler EVANS, JAMES
- EVAN, LEWIS - gweler EVANS, LEWIS
- EVAN, RHYS (1779 - 1876), bardd - gweler EVANS, EDWARD
- EVAN-THOMAS, Syr HUGH (1862 - 1928), llyngesydd
- teulu EVANS Tanybwlch, Maentwrog