- PARRY, JOHN (1812 - 1874), Calvinistic Methodist minister, college tutor, and editor
- PARRY, JOHN (The Blind Harpist; 1710? - 1782), harpist and publisher of music
- PARRY, JOHN (1770 - 1820), poet
- PARRY, JOHN (1835 - 1897), leader of the Anti-tithe movement
- PARRY, JOHN (1789 - 1868), stonemason and musician
- PARRY, JOHN - see SALUSBURY, JOHN
- PARRY, JOHN HUMFFREYS (1786 - 1825), antiquary
- PARRY, JOHN HUMPHREYS - see PARRY, JOHN HUMFFREYS
- PARRY, JOHN ORLANDO (1810 - 1879), musician - see PARRY, JOHN
- PARRY, JOSEPH (1841 - 1903), musician
- PARRY, JOSEPH (1744 - 1826), painter and engraver
- PARRY, JOSHUA (1719 - 1776), Nonconformist minister, and writer
- PARRY, MORRIS (fl. 1661-1683), cleric and bard
- PARRY, OWEN HENRY (1912 - 1956), jazz musician
- PARRY, R. WILLIAMS - see PARRY, ROBERT WILLIAMS
- PARRY, RHISIART (1665? - 1749), poet
- PARRY, RICHARD (1560 - 1623), bishop and biblical translator
- PARRY, RICHARD (Gwalchmai; 1803 - 1897), Independent minister, poet, and man of letters
- PARRY, RICHARD (1710 - 1763) Newborough, poet, schoolmaster, and sexton
- PARRY, ROBERT (fl. 1540?-1612?), author and diarist
- PARRY, ROBERT (Robyn Ddu Eryri; 1804 - 1892), poet
- PARRY, ROBERT (fl. 1810-1863), poet
- PARRY, ROBERT IFOR (1908 - 1975), minister (Cong.) and school teacher
- PARRY, ROBERT WILLIAMS (1884 - 1956), poet, university lecturer
- PARRY, SARAH WINIFRED (1870 - 1953), writer, and editor of Cymru'r Plant from 1908 to 1912
- PARRY, Sir THOMAS (d. 1560), courtier
- PARRY, THOMAS (Llanerchydd; c. 1809 - 1874), poet
- PARRY, THOMAS (d. 1709), minister with the Particular Baptists
- PARRY, Sir THOMAS (1904 - 1985), scholar, Librarian of the National Library of Wales, University Principal, poet
- PARRY, WILLIAM (d. 1585), Roman Catholic conspirator
- PARRY, WILLIAM (1719 - 1775?), civil servant, secretary of the first Cymmrodorion Society
- PARRY, WILLIAM (1743 - 1791), portrait-painter
- PARRY, WILLIAM (1754 - 1819), Independent minister and tutor, and author
- PARRY, WILLIAM EDWARD (1790 - 1855), rear-admiral - see PARRY, JOSHUA
- PARRY, WILLIAM JOHN (1842 - 1927), Labour leader, and author
- PARRY, WINNIE - see PARRY, SARAH WINIFRED
- PARRY-WILLIAMS, AMY (1910 - 1988), singer and author
- PARRY-WILLIAMS, DAVID EWART (1900 - 1996), musician
- PARRY-WILLIAMS, HENRY (1858 - 1925), schoolmaster and poet
- PARRY-WILLIAMS, T. H. - see PARRY-WILLIAMS, THOMAS HERBERT
- PARRY-WILLIAMS, Sir THOMAS HERBERT (1887 - 1975), author and scholar
- PASCOE, Sir FREDERICK JOHN (1893 - 1963), industrialist
- PASK, ALUN EDWARD ISLWYN (1937 - 1995), rugby player and teacher
- PASTOR DAN - see WILLIAMS, DANIEL POWELL
- PATROBAS - see GRUFFYDD, ROBERT
- PAUL AURELIAN (fl. late 5th century), saint
- PAULINUS (fl. late 5th century), saint
- PAULINUS Saint - see PEULIN, Saint
- PAYNE, ELVIRA GWENLLIAN ('Gwen'; née Hinds) (1917 - 2007), politician and community activist
- PAYNE, FFRANSIS GEORGE - see PAYNE, FRANCIS GEORGE