- JONES, SAMUEL, Methodist elder - see JONES, ROBERT
- JONES, SAMUEL (1796 - 1883), banker - see LOYD, LEWIS
- JONES, SAMUEL MAURICE (1853 - 1932), artist
- JONES, SARAH RHIANNON DAVIES (1921 - 2014), author and lecturer
- JONES, SHÂN EMLYN (1936 - 1997), singer
- JONES, SIMON BARTHOLOMEUS (1894 - 1964), Independent minister - see JONES
- JONES, T. LLEW - see JONES, THOMAS LLEWELYN
- JONES, TERENCE GRAHAM PARRY (1942 - 2020), actor, director, writer and popular historian
- JONES, THEOPHILUS (1759 - 1812), historian of Brecknock
- JONES, Sir THEOPHILUS (d. 1685), governor of Dublin - see JONES, MICHAEL
- JONES, THEOPHILUS - see JONES, JENKIN
- JONES, Sir THOMAS (1614 - 1692), chief justice
- JONES, THOMAS (Cynhaiarn; 1839 - 1916), lawyer and writer of verse
- JONES, THOMAS (1756 - 1820), Calvinistic Methodist minister and author
- JONES, THOMAS (Glan Alun; 1811 - 1866), Calvinistic Methodist minister and man of letters
- JONES, THOMAS (1819 - 1882), Independent minister
- JONES, THOMAS (1756 - 1807), mathematician
- JONES, THOMAS (1761 - 1831), Calvinistic Methodist minister and Biblical commentator
- JONES, THOMAS (1810 - 1849), Calvinistic Methodist missionary
- JONES, THOMAS (1769 - 1850), Baptist minister
- JONES, THOMAS (Y Bardd Cloff; 1768 - 1828), poet
- JONES, THOMAS (1818 - 1898), parish clerk
- JONES, THOMAS (1860 - 1932), farmer and poet
- JONES, THOMAS (Canrhawdfardd; 1823 - 1904), preacher, printer, and musician
- JONES, THOMAS (Taliesin o Eifion; 1820 - 1876), poet
- JONES, THOMAS (1848 - 1900), surgeon
- JONES, THOMAS (1871 - 1938), schoolmaster and antiquary
- JONES, THOMAS (1648? - 1713), almanack maker, bookseller, printer, and publisher
- JONES, THOMAS (c. 1622 - 1682), Protestant controversialist
- JONES, THOMAS (1742 - 1803), landscape painter
- JONES, THOMAS (Twm Shôn Catti; 1532 - 1609), landowner, antiquary, genealogist, and bard
- JONES, THOMAS (1752 - 1845), cleric
- JONES, Sir THOMAS (d. 1731), treasurer and secretary of the 'Society of Antient Britons' in London, and author
- JONES, THOMAS (1720? - 1790), cleric and author
- JONES, THOMAS (d. 1676), cleric
- JONES, THOMAS (1908 - 1990), trade unionist and Spanish Civil War veteran
- JONES, THOMAS (1870 - 1955), university professor, civil servant, administrator, author
- JONES, THOMAS, vicar - see JONES, JOHN
- JONES, THOMAS (1910 - 1972), Welsh scholar
- JONES, THOMAS (1777 - 1847), translator, schoolmaster and minister (CM)
- JONES, THOMAS (Gogrynwr; 1822 - 1854), doctor and musician
- JONES, THOMAS, early Welsh Moravian - see JONES, JOHN
- JONES, Sir THOMAS ARTEMUS (1871 - 1943), journalist, judge and historian
- JONES, THOMAS GRIFFITHS (Cyffin; 1834 - 1884), antiquary
- JONES, THOMAS GRUFFYDD (Tafalaw Bencerdd; 1832 - 1898), musician
- JONES, THOMAS GWYNN (1871 - 1949), poet, writer, translator and scholar
- JONES, THOMAS HENRY (1921 - 1965), lecturer and poet
- JONES, THOMAS HUGHES (1895 - 1966), poet, writer and teacher
- JONES, THOMAS IEUAN JEFFREYS - see JEFFREYS-JONES, THOMAS IEUAN
- JONES, THOMAS ISAAC MARDY - see MARDY-JONES, THOMAS ISAAC