- JENKINS, EVAN (1794 - 1849), cleric and schoolmaster
- JENKINS, EVAN (1895 - 1959), poet
- JENKINS, EVAN (1712 - 1752), pastor - see JENKINS, JOSEPH
- JENKINS, EVAN (1712 - 1752), pastor - see JENKINS, JOHN
- JENKINS, EVAN Rhydwilym - see JENKINS, JOSEPH
- JENKINS, EVAN Rhydwilym - see JENKINS, JOHN
- JENKINS, HENRY HORATIO (1903 - 1985), violinist and conductor
- JENKINS, HERBERT (1721 - 1772), early Methodist exhorter, afterwards Independent minister
- JENKINS, ISAAC (1812 - 1877), Wesleyan minister
- JENKINS, JABEZ EDMUND (Creidiol; 1840 - 1903), cleric and poet
- JENKINS, JENKIN (d. 1780), tutor of Carmarthen Academy
- JENKINS, JOHN (1779 - 1853), Baptist minister, theologian, editor, and publisher
- JENKINS, JOHN (Ifor Ceri; 1770 - 1829), cleric and antiquary
- JENKINS, JOHN (1808 - 1884), barrister and publicist
- JENKINS, JOHN (1821 - 1896), editor and translator
- JENKINS, JOHN (GWILI) (1872 - 1936), poet, theologian, and man of letters
- JENKINS, JOHN (1656? - 1733), Baptist minister
- JENKINS, JOHN (1807 - 1872), missionary - see JENKINS, JOHN
- JENKINS, JOHN DAVID (1828 - 1876), cleric, philanthropist
- JENKINS, JOSEPH (1743 - 1819), Baptist minister
- JENKINS, JOSEPH (1859 - 1929), Calvinistic Methodist minister
- JENKINS, JOSEPH (1886 - 1962), minister (Meth.) and author
- JENKINS, KATHRYN (1961 - 2009), scholar and hymnologist
- JENKINS, Sir LEOLINE (1625 - 1685), civil lawyer, diplomat, benefactor of Jesus College, Oxford
- JENKINS, LLEWELYN (1810 - 1878), printer and publisher
- JENKINS, R. T. - see JENKINS, ROBERT THOMAS
- JENKINS, RAE - see JENKINS, HENRY HORATIO
- JENKINS, RICHARD - see BURTON, RICHARD
- JENKINS, ROBERT THOMAS (1881 - 1969), historian, man of letters, editor of Y Bywgraffiadur Cymreig and the Dictionary of Welsh Biography
- JENKINS, ROY HARRIS (1920 - 2003), politician and author
- JENKINS, THOMAS DAVID SLINGSBY - see SLINGSBY-JENKINS, THOMAS DAVID
- JENKINS, THOMAS JOHN PRICE (1864 - 1922), physician; Wales and London-Welsh Rugby centre three-quarter, and founder of the London-Welsh Football Club
- JENKINS, TITUS (1804 - 1834), Baptist minister - see JENKINS, JOHN
- JENKINS, WALTER (d. 1661), early Welsh Quaker
- JENKINS, Sir WILLIAM ALBERT (1878 - 1968), shipbroker and politician
- JENKYN, THOMAS WILLIAM (1794 - 1858), Independent minister and professor of theology
- JEREMY, JOHN (DAVID) (1782 - 1860), preacher and schoolmaster
- JEREMY, WALTER DAVID (1825 - 1893), barrister-at-law
- JERMAN, HUGH (1836 - 1895), artist and musician
- JERRI BACH GOGERDDAN - see WOOD
- JERVIS, WILLIAM - see JARVICE, WILLIAM
- JOAN (d. 1237), princess and diplomat
- JOAN (d. 1237), princess
- JOB, JOHN THOMAS (1867 - 1938), Calvinistic Methodist minister, hymn writer, and poet
- JOHANNES WALLENSIS - see WALLENSIS
- JOHANNES WALLENSIS (fl. c. 1260-1283), Franciscan friar and writer
- JOHN ap JOHN (1625? - 1697), the apostle of the Quakers in Wales
- John David - see JONES, DAVID JOHN
- JOHN OF WALES - see IOHANNES WALLENSIS
- JOHN - see WALLENSIS, JOHANNES