- JONES, JOHN EVANS (1839 - 1893), journalist
- JONES, JOHN FOULKES (1826 - 1880), Calvinistic Methodist minister
- JONES, JOHN HARRIS (1827 - 1885) Trevecka College, Calvinistic Methodist minister and classical tutor
- JONES, JOHN HENRY (1909 - 1985), educationist and translator
- JONES, JOHN HERBERT (Je Aitsh; 1860 - 1943), journalist and author
- JONES, JOHN HUGH (1843 - 1910), Roman Catholic priest
- JONES, JOHN ISLAN (1874 - 1968), minister (U) and author
- JONES, JOHN ITHEL (1911 - 1980), minister (Baptist) and college principal
- JONES, JOHN JAMES (1892 - 1957), teacher, librarian, scholar and linguist
- JONES, JOHN LLOYD - see LLOYD-JONES, JOHN
- JONES, JOHN MATHER (1826 - 1874), proprietor of Y Drych
- JONES, JOHN MORGAN (1861 - 1935), Calvinistic Methodist minister and author
- JONES, JOHN MORGAN (1838 - 1921), Calvinistic Methodist minster
- JONES, JOHN MORGAN (1873 - 1946), minister (Congl.) and Principal of Bala-Bangor College, Bangor
- JONES, Sir JOHN MORRIS - see MORRIS-JONES, Sir JOHN
- JONES, JOHN OGWEN (1829 - 1884), Calvinistic Methodist minister and man of letters
- JONES, JOHN OWEN (1857 - 1917), Calvinistic Methodist minister and tutor, and man of letters
- JONES, JOHN OWEN (Ap Ffarmwr; 1861 - 1899), journalist
- JONES, JOHN OWEN (OWEN BRYNGWYN; 1884 - 1972), singer
- JONES, JOHN PULESTON (1862 - 1925), Calvinistic Methodist minister, writer, and theologian
- JONES, JOHN RICE (1759 - 1824), lawyer and settler in the American mid-west
- JONES, JOHN RICHARD (1765 - 1822), Sandemanian Baptist minister
- JONES, JOHN ROBERT (Alltud Glyn Maelor; 1800 - 1881), poet and hymn-writer
- JONES, JOHN ROBERT (1911 - 1970), philosopher and patriot
- JONES, JOHN SHARE (1873 - 1950), veterinary surgeon
- JONES, JOHN THOMAS (1889 - 1952), missionary
- JONES, JOHN THOMAS ALUN (1851 - 1929), Calvinistic Methodist minister - see JONES, THOMAS
- JONES, JOHN TYWI (1870 - 1948), Baptist minister and journalist
- JONES, JOHN VIRIAMU (1856 - 1901), first principal of the University College, Cardiff
- JONES, JOHN WILLIAM (1827 - 1884), editor of Y Drych, a Welsh-American newspaper
- JONES, JOHN WILLIAM (Andronicus; 1842 - 1895), author
- JONES, JOHN WILLIAM (1868 - 1945), builder
- JONES, JOHN WILLIAM (1883 - 1954), author, collector of letters and papers, publisher, antiquary and folk poet
- JONES, JOHN WOOD (1800 - 1844), harpist - see WOOD
- JONES, JONATHAN (1745 - 1832), Independent minister
- JONES, JOSEPH (1786? - 1856), mine steward, and eisteddfodwr
- JONES, JOSEPH (1877 - 1950), principal of the Memorial College, Brecon
- JONES, JOSEPH (fl. mid-18th century), sectary (Antinomian) - see JONES, THOMAS
- JONES, JOSEPH (1799 - 1871), Catholic priest
- JONES, JOSEPH DAVID (1827 - 1870), schoolmaster and musician
- JONES, JOSIAH (1830 - 1915), Independent minister
- JONES, JOSIAH THOMAS (1799 - 1873), publisher and Independent minister
- JONES, JOSIAH TOWYN (1858 - 1925), Congregational minister, and Member of Parliament
- JONES, LEIFCHILD STRATTEN LEIF (1862 - 1939), Liberal politician and temperance advocate
- JONES, LEWIS (1702? - 1772), Independent minister
- JONES, LEWIS (fl. 1703) Pandy, Llan-uwchllyn, poet
- JONES, LEWIS (1837 - 1904), pioneer in Patagonia, and writer
- JONES, LEWIS (1897 - 1939), communist agitator and author
- JONES, LEWIS (1808 - 1854), Calvinistic Methodist minister and author
- JONES, LEWIS (Rhuddenfab; 1835 - 1915), printer, poet, and journalist