- ROWLANDS, Sir ARCHIBALD (1892 - 1953), administrator
- ROWLANDS, BENJAMIN - see ROWLAND, BENJAMIN
- ROWLANDS, CEINWEN (1905 - 1983), singer
- ROWLANDS, DANIEL (1827 - 1917), principal of the Normal College, Bangor
- ROWLANDS, DAVID (Dewi Môn; 1836 - 1907), Congregational minister and college principal
- ROWLANDS, DAVID - see ROWLAND, DAVID
- ROWLANDS, DOROTHY, Quaker minister - see LEWIS
- ROWLANDS, EDWARD DAVID (1880 - 1969), schoolmaster and author
- ROWLANDS, ELLIS - see ROWLAND, ELLIS
- ROWLANDS, EURYS IONOR (1926 - 2006), Welsh scholar
- ROWLANDS, GRIFFITH (1761 - 1828), surgeon
- ROWLANDS, HENRY (1655 - 1723), antiquary
- ROWLANDS, HENRY (Harri Myllin; 1832 - 1903), writer and antiquary
- ROWLANDS, Sir HUGH (1828 - 1909), general, and the first Welshman to be awarded the Victoria Cross
- ROWLANDS, JANE HELEN (Helen o Fôn; 1891 - 1955), linguist, teacher and missionary (with the CM)
- ROWLANDS, JOHN (Giraldus; 1824 - 1891), antiquary
- ROWLANDS, JOHN - see STANLEY, Sir HENRY MORTON
- ROWLANDS, ROBERT JOHN (Meuryn; 1880 - 1967), journalist, writer, poet, lecturer, preacher
- ROWLANDS, ROBERT PUGH (1874 - 1933), chief surgeon of Guy's Hospital
- ROWLANDS, WILLIAM (Gwilym Lleyn; 1802 - 1865), Wesleyan minister, and bibliographer
- ROWLANDS, WILLIAM (1807 - 1866), author, editor, minister, and principal founder of the Calvinistic Methodist connexion in the U.S.A.
- ROWLANDS, WILLIAM - see ROWLAND, WILLIAM
- ROWLEY, HAROLD HENRY (1890 - 1969), professor, scholar and author
- RUCK, AMY ROBERTA (1878 - 1978), novelist
- RUCK, BERTA - see RUCK, AMY ROBERTA
- RUFUS - see WILLIAMS, JOHN
- RUMSEY, WALTER (1584 - 1660), judge
- RUSBRIDGE, ROSALIND (1915 - 2004), teacher and peace campaigner
- RUSSON, Sir WILLIAM CLAYTON (1895 - 1968), industrialist