| Scarlett Thomas | British writer | 1972 |
| W. Ian Thomas | British writer | 1914–2007 |
| Bill Thompson | English technology writer, bo… | 1960 |
| Dorothy Thompson | American journalist and radio… | 1893–1961 |
| Emma Thompson | British actress and writer | 1959 |
| Flora Thompson | English author and poet | 1876–1947 |
| Francis Thompson | British poet | 1859–1907 |
| Fred Thompson | American politician and actor | 1942–2015 |
| Hunter S. Thompson | American journalist and author | 1937–2005 |
| James D. Thompson | American sociologist | 1920–1973 |
| Jim Thompson | American writer | 1906–1977 |
| John Sparrow Thompson | | |
| Kay Thompson | American actress, singer, com… | 1909–1998 |
| Ken Thompson | American computer scientist, … | 1943 |
| Maurice Thompson | American novelist | 1844–1901 |
| Tade Thompson | British science fiction writer | |
| Tessa Thompson | American actresse | 1983 |
| William Hepworth Thompson | British classical philologist | 1810–1886 |
| William Irwin Thompson | American writer | 1938 |
| William Tappan Thompson | American humorist | 1812–1882 |
| A. A. Thomson | cricketer and author | 1894–1968 |
| Andrew Thomson | British writer | 1814–1901 |
| Celia Thomson | American writer of fiction fo… | 1950 |
| Charles Thomson | American patriot leader (1729… | 1729–1824 |
| Edward Thomson | American bishop | 1810–1870 |
| Elihu Thomson | American inventor | 1853–1937 |
| J. J. Thomson | British physicist | 1856–1940 |
| Rupert Thomson | British writer | 1955 |
| Virgil Thomson | American composer | 1896–1989 |
| William Thomson | British physicist and engineer | 1824–1907 |
| Jacob Thoomkuzhy | Indian archbishop | 1930 |
| Brad Thor | American writer | 1969 |
| Henry David Thoreau | 1817-1862 American poet, essa… | 1817–1862 |
| Abigail Thorn | British actress and YouTuber | 1993 |
| Tracey Thorn | English singer and songwriter | 1962 |
| Emily Thornberry | British politician (born 1960) | 1960 |
| George Walter Thornbury | British writer | 1828–1876 |
| Dyanne Thorne | American actress | 1943–2020 |
| Juan Luis Cipriani Thorne | Catholic cardinal | 1943 |
| Kip S. Thorne | American physicist | 1940 |
| Melanie Thornton | singer | 1967–2001 |
| Adam Thorpe | British writer | 1956 |
| Rose Hartwick Thorpe | American poet | 1850–1939 |
| Philippos Stephanos Thottathil | Indian bishop | 1952 |
| Hester Thrale | Welsh author and salon-holder | 1741–1821 |
| Travis Thrasher | | |
| Thrasymachus | Ancient Greek sophist | -459–-399 BC |
| Thucydides | Greek historian and Athenian … | |
| Greta Thunberg | Swedish climate change activi… | 2003 |
| John Thune | United States Senator from So… | 1961 |
| James Thurber | American cartoonist, author, … | 1894–1961 |
| Edward Thurlow, 1st Baron Thurlow | British lawyer and Tory polit… | 1731–1806 |
| Howard Thurman | American writer | 1899–1981 |
| Rob Thurman | American writer | 1950 |
| Uma Thurman | American actress and model | 1970 |
| Wallace Thurman | American novelist active duri… | 1902–1934 |
| Paul Thurrott | American podcaster, author, a… | 1966 |
| Robert Henry Thurston | mechanical engineer | 1839–1903 |
| William Thurston | mathematician | 1946–2012 |
| Friedrich Thyssen | German banker | 1804–1877 |
| T.I. | American rapper, record produ… | 1980 |
| Paul Tibbets | United States Air Force pilot | 1915–2007 |
| Tiberius | 2nd Emperor of Ancient Rome, … | -42–37 BC |
| Tibullus | poet and writer (0054-0019) | -50–-19 BC |
| Russ Tice | former intelligence analyst | 1961 |
| Thomas Tickell | English poet and man of lette… | 1685–1740 |
| Danny Tidwell | American dancer | 1984 |
| Ludwig Tieck | German poet, translator, edit… | 1773–1853 |
| Ivor Tiefenbrun | Scottish businessman | 1946 |
| Joseph Tiefenthaler | Austrian missionary | 1710–1785 |
| Hebe Tien | Taiwanese singer, actress | 1983 |
| Cate Tiernan | American novelist | 1961 |
| Tommy Tiernan | Irish comedian | 1969 |
| Tatiana de la tierra | Latina writer and activist | 1961–2012 |
| Tiësto | Dutch DJ and record producer | 1969 |
| Louis Comfort Tiffany | American stained glass and je… | 1848–1933 |
| Tom Tiffany | American businessman and poli… | 1957 |
| Reies Tijerina | American activist | 1926–2015 |
| Bal Gangadhar Tilak | Indian independence activist | 1856–1920 |
| Glenn Tilbrook | British musician | 1957 |
| Rex Tillerson | 69th United States Secretary … | 1952 |
| Christopher Tilley | British postprocessual archae… | 1955 |
| Paul Tillich | German-American theologian an… | 1886–1965 |
| Benjamin Tillman | American politician | 1847–1918 |
| John Tillotson | Archbishop of Canterbury | 1630–1694 |
| Charles Tilly | American sociologist | 1929–2008 |
| Tilopa | Indian philosopher | 928–1009 |
| Theodore Tilton | American newspaper editor | 1835–1907 |
| Timbaland | American record producer, rap… | 1972 |
| Justin Timberlake | American singer and actor | 1981 |
| Bruce Timm | Animator | 1961 |
| Semyon Timoshenko | Soviet military commander | 1895–1970 |
| Henry Timrod | Poet from the American South | 1828–1867 |
| Jan Tinbergen | Dutch economist | 1903–1994 |
| Johannes Tinctoris | Flemish composer | 1435–1511 |
| Peter Chung Hoan Ting | Malaysian catholic priest | 1928 |
| Samuel C. C. Ting | physicist | 1936 |
| Shu Ting | Chinese writer | 1952 |
| Jean Tinguely | Swiss painter and sculptor | 1925–1991 |
| Tippu Tip | Swahili slave trader | 1837–1905 |