- OWEN, Tyddyn-y-garreg - see LEWIS
- OWEN, - see WYNN
- OWEN ap GRUFFYDD ap GWENWYNWYN (d. 1293) - see GRUFFYDD ap GWENWYNWYN
- OWEN ap SION ap RHYS (fl. second half of 16th century) Trefeilir, poet
- OWEN BRYNGWYN - see JONES, JOHN OWEN
- OWEN, - see MAURICE
- OWEN GOSPIOL - see GRIFFITH, OWEN
- OWEN GWYRFAI - see WILLIAMS, OWEN
- OWEN LAWGOCH - see OWAIN ap THOMAS ap RHODRI
- OWEN RHOSCOMYL - see VAUGHAN, ARTHUR OWEN
- OWEN, ANEURIN (1792 - 1851), Welsh historical scholar and editor of the Laws of Hywel Dda
- OWEN, Sir ARTHUR DAVID KEMP (1904 - 1970), international administrator
- OWEN, ATHELSTAN (1676 - 1731) Rhiwsaeson,
- OWEN, BOB - see OWEN, ROBERT
- OWEN, CHARLES (d. 1746), Dissenting minister and tutor
- OWEN, DANIEL (1836 - 1895), novelist
- OWEN, DAVID (Brutus; 1795 - 1866), editor and littérateur
- OWEN, DAVID (Dewi Wyn o Eifion; 1784 - 1841), farmer and poet
- OWEN, DAVID (Dafydd y Garreg Wen; 1711 - 1741), harpist
- OWEN, DAVID (d. 1765) Felin-foel, Baptist minister
- OWEN, Sir DAVID JOHN (1874 - 1941), docks manager
- OWEN, DAVID SAMUEL (1887 - 1959), minister (Presb.)
- OWEN, EDWARD (1728/9 - 1807), cleric and schoolmaster
- OWEN, EDWARD (1853 - 1943), journalist, barrister, and antiquary
- OWEN, EDWARD HUMPHREY (1850 - 1904) Tŷ Coch,, book-collector and local historian
- OWEN, EDWARD PRYCE (1788 - 1863), cleric and artist
- OWEN, ELIAS (1833 - 1899), cleric and antiquary
- OWEN, ELIZABETH MARY - see JONES, ELIZABETH MARY
- OWEN, ELLIS (1789 - 1868), farmer, antiquary, and poet
- OWEN, FOULKE (fl. 1686), poet
- OWEN, GEORGE (c. 1552 - 1613), historian, antiquary, and genealogist
- OWEN, GEORGE - see HARRY, GEORGE OWEN
- OWEN, GERALLT LLOYD (1944 - 2014), teacher, publisher, poet
- OWEN, GORONWY (1723 - 1769), cleric and poet
- OWEN, Sir GORONWY (1881 - 1963), politician
- OWEN, GRIFFITH (1647 - 1717), Quaker and medical man
- OWEN, GWILYM (1880 - 1940), physicist
- OWEN, HENRY (1716 - 1795), cleric, physician, and scholar
- OWEN, HENRY (1844 - 1919), antiquary
- OWEN, Sir HUGH (1804 - 1881), educationist
- OWEN, HUGH (1639 - 1700), Puritan minister, Independent 'apostle of Merioneth'
- OWEN, HUGH (1575? - 1642) Gwenynog,, translator
- OWEN, HUGH (1761 - 1827), cleric and local historian
- OWEN, HUGH (1832 - 1897), musician
- OWEN, HUGH (1880 - 1953), historian
- OWEN, HUGH - see HUGHES, JOHN
- OWEN, HUGH JOHN (1880 - 1961), solicitor, author and local historian
- OWEN, HUMPHREY (1702 - 1768), principal of Jesus College, Oxford, and Bodley's librarian
- OWEN, HUW PARRI (1926 - 1996), philosopher and theologian
- OWEN, IEUAN TUDUR - see OWEN, IFAN TUDUR