- FOULKES, ROBERT (1743 - 1841), musician
- FOULKES, THOMAS (1731 - 1802), early Methodist exhorter
- FOULKES, WILLIAM (d. 1691), cleric and translator
- FOULKES, WILLIAM (fl. 1699) - see FOULKES, WILLIAM
- FOULKS, THOMAS - see FOULKES, THOMAS
- FOX, Sir CYRIL FRED (1882 - 1967), Director of the National Museum of Wales
- FOXWIST, WILLIAM (1610 - 1673), lawyer, judge and Member of Parliament
- FRANCIS, ABEL (d. c. 1743), Arminian Baptist minister
- FRANCIS, BENJAMIN (1734 - 1799), hymnist, Baptist minister
- FRANCIS, DAI - see FRANCIS, DAVID
- FRANCIS, DAVID (1911 - 1981), trade unionist and miners' leader
- FRANCIS, EDMUND (1768 - 1831), Sandemanian Baptist minister
- FRANCIS, ENOCH (1688/9 - 1740), Baptist minister
- FRANCIS, GEORGE GRANT (1814 - 1882), business man and antiquary
- FRANCIS, GRIFFITH (1876 - 1936), musicians
- FRANCIS, GWYN JONES (1930 - 2015), forester
- FRANCIS, JOHN (1789 - 1843), miller and musician
- FRANCIS, JOHN DEFFETT (1815 - 1901), painter and collector
- FRANCIS, JOHN OSWALD (1882 - 1956), dramatist
- FRANCIS, JONATHAN (1722/3 - 1801), Baptist minister
- FRANCIS, MARY JANE - see EVANS, MARY JANE
- FRANCIS, OWEN (1879 - 1936), musician - see FRANCIS, GRIFFITH
- FRANKLEN, Sir THOMAS MANSEL (1840 - 1928), public servant
- FREDDIE WELSH - see THOMAS, FREDERICK HALL
- FREEMAN, KATHLEEN (Mary Fitt; 1897 - 1959), classical scholar and writer
- FRIMSTON, THOMAS (Tudur Clwyd; 1854 - 1930), Baptist minister, historian and antiquary
- FROST, JOHN (1784 - 1877), Chartist
- FROST, WILLIAM FREDERICK (1846 - 1891), harpist
- FYNES-CLINTON, OSBERT HENRY (1869 - 1941), Professor of French and Romance Philology at the University College of North Wales, Bangor