- WYN, OWEN, master of S. John's College, Cambridge - see GWYN, JOHN
- WYN, OWEN (d. 1633), master of S. John's College, Cambridge - see WYNN
- WYNDHAM, - see EDWIN
- WYNDHAM-QUIN, WINDHAM HENRY (5th EARL DUNRAVEN and MOUNT-EARL), (1857 - 1952), soldier and politician
- WYNDHAM-QUIN, WINDHAM THOMAS (4th EARL of DUNRAVEN AND MOUNT-EARL in the Irish peerage, 2nd Baron KENRY of the United Kingdom), (1841 - 1926), Glamorgan landowner and politician, sportsman and author
- WYNN family Bodewryd,
- WYNN family Berth-ddu, Bodysgallen,
- WYNN family Cesail Gyfarch, Penmorfa
- WYNN family Gwydir,
- WYNN family Glyn (Glyn Cywarch), Brogyntyn,
- WYNN family Maesyneuadd, Llandecwyn
- WYNN family Ynysmaengwyn, Dolau Gwyn,
- WYNN family Rûg, Boduan, Bodfean,
- WYNN family Wynnstay,
- WYNN, EDWARD (1618 - 1669), chancellor of Bangor cathedral
- WYNN, GRIFFITH (1669? - 1736), cleric and translator
- WYNN, HUGH Berth-ddu, Bodysgallen - see WYNN
- WYNN, JANE Maesyneuadd - see WYNN
- WYNN, Sir JOHN (1553 - 1627), Member of Parliament - see WYNN
- WYNN, JOHN (fl. 1551-1560), sheriff of Caernarfonshire - see WYNN
- WYNN, JOHN - see GWYN, JOHN
- WYNN, ROBERT (d. 1743), chancellor of St Asaph - see WYNNE, WILLIAM
- WYNN, Sir WATKIN WILLIAMS (1820 - 1885), M.P. - see WYNN
- WYNN, WILLIAM (1709 - 1760), cleric, antiquary, and poet
- WYNN, WILLIAM (1704 - 1761), rector - see WYNNE, ELLIS
- WYNNE family Peniarth,
- WYNNE family Voelas,
- WYNNE, Wern Penmorfa - see WYNNE
- WYNNE, Bodvel, Caerfryn - see BODVEL
- WYNNE FINCH, Voelas - see WYNNE
- WYNNE, CATHERINE, heiress - see WYNNE, JOHN
- WYNNE, DAVID (1900 - 1983), composer
- WYNNE, EDWARD (1715 - 1767), vicar - see WYNNE, ELLIS
- WYNNE, EDWARD (1685 - 1745), vicar - see WYNNE, ROBERT
- WYNNE, ELLIS (1670/1 - 1734), cleric, and author of an outstanding Welsh prose classic
- WYNNE, JOHN (1650 - 1714), industrial pioneer
- WYNNE, JOHN (1667 - 1743), bishop of St Asaph and principal of Jesus College, Oxford
- WYNNE, JOHN (1724 - 1801), Bencher of the Middle Temple - see WYNNE, JOHN
- WYNNE, OWEN (1652 - ?), civil servant
- WYNNE, ROBERT (d. 1720), cleric and poet
- WYNNE, SARAH EDITH (Eos Cymru; 1842 - 1897), vocalist
- WYNNE, SIDNEY - see GRIFFITH, SIDNEY
- WYNNE, WILLIAM (1671? - 1704), historian
- WYNNE, WILLIAM EDWARD WATKIN (1801 - 1880), antiquary - see WYNNE
- WYNNE-FINCH, Sir WILLIAM HENEAGE (1893 - 1961), soldier and landowner
- WYNN, JOHN (c. 1584 - 1614), high sheriff - see WYNN
- WYNN, OWEN (1592 - 1660), high sheriff - see WYNN
- WYNN, RICHARD (c. 1625 - 1674), politician - see WYNN
- WYNN, RICHARD (1588 - 1649), politician - see WYNN