- JONES, LEWIS (1793 - 1866), cleric
- JONES, Sir LEWIS (1884 - 1968), industrialist and politician
- JONES, LEWIS (d. 1646), bishop - see JONES, MICHAEL
- JONES, LEWIS (d. 1646), bishop - see JONES, MICHAEL
- JONES, LEWIS CARTER- - see CARTER-JONES, LEWIS
- JONES, LEWIS DAVIES (Llew Tegid; 1851 - 1928), eisteddfodwr
- JONES, LEWIS EVAN (d. 1860), printer - see JONES, RICHARD
- JONES, LLEWELYN (1894 - 1960), minister (Presb.), editor and author
- JONES, MAGDALEN, author - see JONES, ROBERT
- JONES, MAI - see JONES, GLADYS MAY
- JONES, MARGARET (Y Gymraes o Ganaan; 1842 - 1902), traveler and writer
- JONES, MARGARET - see HUGHES, MARGARET
- JONES, MAURICE (1863 - 1957), priest and college principal
- JONES, MEGAN - see HUGHES, MARGARET
- JONES, MEIRION (1907 - 1970), educationist
- JONES, MICHAEL (d. 1649), soldier
- JONES, MICHAEL (1787 - 1853), Independent minister and first principal of the Bala Independent College
- JONES, MICHAEL D. - see JONES, MICHAEL DANIEL
- JONES, MICHAEL DANIEL (1822 - 1898), Independent minister and principal of the Independent College at Bala
- JONES, MORDECAI (1813 - 1880), promoter of British Schools, colliery proprietor, etc.
- JONES, MORGAN (1768 - 1835), Independent minister
- JONES, MORGAN (fl. mid 17th century) South Wales, Baptist preacher
- JONES, MORGAN (1717? - 1780), Congregational minister
- JONES, MORGAN - see LEWIS, MORGAN JOHN
- JONES, MORGAN GLYNDWR (1905 - 1995), poet, novelist and short story writer
- JONES, MORGAN HUGH (1873 - 1930), Calvinistic Methodist historian
- JONES, MORRIS CHARLES (1819 - 1893), antiquary, and founder of the Powysland Club, Welshpool
- JONES, MOSES OWEN (1842 - 1908), schoolmaster, musician, and eisteddfodwr
- JONES, NANSI RICHARDS (Telynores Maldwyn; 1888 - 1979), harpist
- JONES, NATHANIEL CYNHAFAL (1832 - 1905), Calvinistic Methodist minister, and poet
- JONES, O. V. - see JONES, OWEN VAUGHAN
- JONES, OWEN (Meudwy Môn; 1806 - 1889), Calvinistic Methodist minister, and man of letters
- JONES, OWEN (1809? - 1874), architect and ornamental designer
- JONES, OWEN (1833 - 1899), Calvinistic Methodist minister and man of letters
- JONES, OWEN (Manoethwy; 1838 - 1866), school teacher and writer
- JONES, OWEN (1787 - 1828), pioneer in Sunday school work
- JONES, OWEN (Owain Myfyr; 1741 - 1814), a skinner in London and one of the most prominent figures in the literary life of Wales at the end of the 18th cent, and the beginning of the next
- JONES, OWEN (1825 - 1900), cleric and musician
- JONES, OWEN (fl. 1789-1793), president - see JONES, EDWARD
- JONES, OWEN GETHIN (Gethin; 1816 - 1883), local historian
- JONES, OWEN GLYNNE (1867 - 1899), mountaineer and schoolteacher
- JONES, OWEN THOMAS (1878 - 1967), Woodwardian Professor of Geology in the University of Cambridge
- JONES, OWEN VAUGHAN (1907 - 1986), obstetrician and gynaecologist
- JONES, OWEN WYNNE (Glasynys; 1828 - 1870), cleric, antiquary, story-writer, and poet
- JONES, (WILLIAM JOHN) PARRY (1891 - 1963), singer
- JONES, PERCY (1891 - 1922), boxer
- JONES, PERCY MANSELL (1889 - 1968), Professor of French
- JONES, PETER (Pedr Fardd; 1775 - 1845), poet and hymnist
- JONES, PHILIP (1618 - 1674), colonel in the Parliamentary army and member of Cromwell's Second (or 'Other') House
- JONES, PHILIP (1855 - 1945), minister (CM)