Cognomen Elfyn (Elfyn 
) , around the globe, is an extremely rare last name. The family name Elfyn is characteristic of Northern Europe, particularly the United Kingdom, where it is an extremely rare surname. Much more prevalently, Elfyn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Elfyn | India, Canada, Philippines, United States, United Kingdom |
| gwyn elfyn Welsh actor, GB (b. 1960) |
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| bethan elfyn British broadcaster, GB (b. 1974) |
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| richard elfyn Welsh actor |
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| elfyn elfyn |
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Tan, Thomas, Hughes, French, Bullock, Palatus, Roberts, Goodall, Lambert, Groves, Neville, Wyn-Jones, Richards, Griffith, Williams, Carpenter, Pritchard, Griffiths, Fernandes, Edwards, Scourfield, Dafydd, Samuel, Pugh, Rees, Duff, Love, Owen, Anwyl, Kelly, Parry, Davies, Dinoy, Lloyd, Llwyd, Jones, Ellis, Evans, Hanks, Morris, Morgan, Lewis, and Vandenhende