- OWEN, RICHARD GRIFFITH (Pencerdd Llyfnwy; 1869 - 1930), musician
- OWEN, RICHARD JONES (Glaslyn; 1831 - 1909), poet and prose-writer
- OWEN, RICHARD MORGAN (1877 - 1932), Wales and Swansea Rugby scrummage halfback
- OWEN, ROBERT (d. 1685), Quaker
- OWEN, ROBERT (1771 - 1858), Utopian Socialist
- OWEN, ROBERT (Eryron Gwyllt Walia; 1803 - 1870), Calvinistic Methodist minister, and poet
- OWEN, ROBERT (1858 - 1885), schoolmaster and poet
- OWEN, ROBERT (1820 - 1902), cleric and author
- OWEN, ROBERT (1834 - 1899), Calvinistic Methodist minister, and author
- OWEN, ROBERT (1885 - 1962), historian, bookworm and genealogist
- OWEN, Sir ROBERT (1658 - 1698), politician - see OWEN, Sir JOHN
- OWEN, ROBERT LLUGWY (1836 - 1906), Calvinistic Methodist minister, author, and schoolmaster
- OWEN, THOMAS (1748 - 1812), cleric and translator
- OWEN, THOMAS ELLIS (1764 - 1814), cleric
- OWEN, WILLIAM (William Owen; 1813 - 1893) Prysgol,, musician
- OWEN, WILLIAM (1785 - 1864), antiquary
- OWEN, WILLIAM (fl. c. 1486-1574), lawyer
- OWEN, WILLIAM (1830 - 1865), musician
- OWEN, WILLIAM (Gwilym Ddu Glan Hafren;; 1788 - 1838), schoolmaster and musician
- OWEN, WILLIAM (1750 - 1830), Evangelical cleric
- OWEN, WILLIAM (Philotheoros; 1789 - 1841), Baptist preacher, schoolmaster, and almanacmaker
- OWEN, WILLIAM (Gwilym Alaw;; 1762 - 1853), farmer
- OWEN, WILLIAM (Gwilym Meudwy, Gwilym Glan Llwchwr; 1841 - 1902), rhymester and tramp
- OWEN, Sir WILLIAM (1607 - 1670), landowner - see OWEN, Sir JOHN
- OWEN, WILLIAM (1624 - 1677) - see OWEN, Sir JOHN
- OWEN, WILLIAM DAVID (1874 - 1925), lawyer and journalist
- OWEN, WILLIAM GRIFFITH (1857 - 1922), Baptist minister - see OWEN, OWEN GRIFFITH
- OWEN, WILLIAM HENRY (1845? - 1868), organist - see OWEN, JOHN
- OWEN, WILLIAM HUGH (1886 - 1957), civil servant
- OWEN, WILLIAM RICHARD (1906 - 1982), pioneer of Welsh broadcasting
- OWENS, JOHNNY RICHARD (JOHNNY OWEN; 1956 - 1980), boxer
- OWENS, OWEN (1792 - 1862), Independent minister, and schoolmaster
- OWENS, OWEN (1794 - 1838), leader of the 'Little Wesleyan' movement
- OXFORD, Earls of - see HARLEY