- ROBERTS, DAVID (Dewi Ogwen; 1818 - 1897), Independent minister
- ROBERTS, DAVID (Alawydd; 1820 - 1872), quarryman and musician
- ROBERTS, DAVID (Dewi Havhesp; 1831 - 1884), poet
- ROBERTS, DAVID (Telynor Mawddwy; 1875 - 1956), harpist, singer and author of handbooks on penillion singing
- ROBERTS, DAVID (1788? - 1869), physician - see ROBERTS
- ROBERTS, DAVID FRANCIS (1882 - 1945), minister (CM) and author
- ROBERTS, DAVID JOHN (Dewi Mai o Feirion; 1883 - 1956), journalist, folk poet, tutor and setter of cerdd dant
- ROBERTS, DAVID OWEN (1888 - 1958), educationalist
- ROBERTS, EDWARD (1816 - 1887), Congregational minister
- ROBERTS, EDWARD (Iorwerth Glan Aled; 1819 - 1867), poet and writer
- ROBERTS, EDWARD (fl. end of 18th century), editor
- ROBERTS, EDWARD (1886 - 1975), minister (Bapt.) and college principal
- ROBERTS, EDWARD EMRYS - see EMRYS-ROBERTS, EDWARD
- ROBERTS, EDWARD STANTON (1878 - 1938), schoolteacher and scholar
- ROBERTS, EDWYN CYNRIG (1837 - 1893), pioneer in Patagonia
- ROBERTS, ELEAZAR (1825 - 1912), musician
- ROBERTS, ELIS (d. 1789), cooper, ballad-writer, and composer of interludes
- ROBERTS, ELLIS - see ROBERTS, ELIS
- ROBERTS, ELLIS (Eos Llyfnwy, Robin Ddu Eifionydd; 1827 - 1895)
- ROBERTS, EMMANUEL BERWYN (1869 - 1951), minister (Meth.)
- ROBERTS, EMRYS OWAIN - see ROBERTS, EMRYS OWEN
- ROBERTS, EMRYS OWEN (1910 - 1990), Liberal politician and public servant
- ROBERTS, Sir ERNEST HANDFORTH GOODMAN (1890 - 1969), judge
- ROBERTS, EVAN (d. 1650), early Puritan
- ROBERTS, EVAN (1718 - 1804) Minera, trustee of the Trevecka 'Family,' a lead-miner
- ROBERTS, EVAN (1923 - 2007), research chemist and industrialist
- ROBERTS, EVAN (1836 - 1918), watch salesman and 'the greatest horological collector of all'
- ROBERTS, EVAN JOHN (Y Diwygiwr, the Revivalist; 1878 - 1951), revivalist preacher
- ROBERTS, EVELYN BEATRICE (Lynette) (1909 - 1995), poet and prose writer
- ROBERTS, FOULK - see WILLIAMS, FOULK ROBERT
- ROBERTS, FREDERICK CHARLES (1862 - 1894), medical missionary - see ROBERTS
- ROBERTS, Sir GABRIEL (c.1629), Aleppo merchant - see ROBERTS, LEWIS
- ROBERTS, GABRIEL (d. 1614), merchant - see ROBERTS, LEWIS
- ROBERTS, GEORGE (1769 - 1853), settler and Independent minister in U.S.A.
- ROBERTS, Sir GEORGE FOSSETT (1870 - 1954), soldier, politician and administrator
- ROBERTS, GLYN (1904 - 1962), historian and administrator
- ROBERTS, GOMER MORGAN (1904 - 1993), minister (CM), historian, author and hymnwriter
- ROBERTS, GORONWY OWAIN (1913 - 1981) - see ROBERTS, GORONWY OWEN
- ROBERTS, GORONWY OWEN (Baron Goronwy-Roberts), (1913 - 1981), Labour politician
- ROBERTS, GRIFFITH (1735 - 1808), physician at Dolgelley, antiquary, and collector of manuscripts
- ROBERTS, GRIFFITH (Gwrtheyrn; 1846 - 1915), littérateur
- ROBERTS, GRIFFITH JOHN (1912 - 1969), priest and poet
- ROBERTS, GWEN REES (1916 - 2002), missionary and teacher
- ROBERTS, GWILYM OWEN (1909 - 1987), author, lecturer, minister and psychologist
- ROBERTS, GWYNETH PARUL (1910 - 2007), doctor and missionary
- ROBERTS, HOWELL (Hywel Tudur; 1840 - 1922), poet, preacher and inventor
- ROBERTS, HUGH (1644? - 1702), Quaker
- ROBERTS, HUGH GORDON (1885 - 1961), surgeon and missionary
- ROBERTS, HUW (fl. c. 1555-1619), poet, author, and cleric
- ROBERTS, IOAN (1941 - 2019), journalist, producer and author