| Author (number of quotes) | Description |
| Ta |
| Tablo (6) | stage name of Daniel Armand Lee, Korean-Canadian rapper |
| Taleb, Nassim Nicholas (16) | Lebanese-American essayist, scholar and statistician |
| Tammeus, William D. (1) | |
| Tan, Amy (2) | American author |
| Tarantino, Quentin (3) | |
| Tate, Allen (1) | |
| Tatum, Channing (1) | American actor and dancer |
| Taylor, Corey (1) | American singer and author |
| Taylor, Janet D. (1) | |
| Te |
| Teale, Edmund Way (1) | American naturalist, photographer, writer |
| Tegmark, Max (2) | Swedish-American physicist and cosmologist |
| Teller, Janne (5) | Danish author |
| Temple Bell, Eric (1) | Scottish mathematician |
| Tennyson, Alfred (2) | English poet |
| Teresa, Mother (7) | Albanian-born Indian Roman Catholic nun |
| Tesla, Nikola (1) | |
| Th |
| Thatcher, Margaret (7) | |
| Thiel, Peter (1) | American entrepreneur |
| Thomas, Dylan (1) | Welsh poet and writer |
| Thompson, Hunter S. (1) | American journalist and author |
| Thompson, Kenneth Lane (2) | American computer scientist |
| Thoreau, Henry David (49) | American author, philosopher |
| Thorne, Bella (3) | American actress, singer and model |
| Thucydides (1) | Greek historian and author |
| Thurber, James (1) | American author |
| Ti |
| Tilley, Patrick (1) | |
| To |
| Tolle, Eckhart (10) | German-born Canadian author and spiritualist |
| Tolstoy, Leo (4) | Russian writer |
| Tomlin, Lily (3) | American actress, producer, author |
| Tomlinson, Louis (3) | English singer |
| Torres, Fernando (1) | Spanish footballer |
| Tr |
| Tracy, Brian (2) | American author |
| Travolta, John (2) | American actor, producer, and director |
| Tressell, Robert (2) | pen name of Robert Croker, Irish writer |
| Trevelyan, George M. (1) | British historian |
| Trigger, Bruce Graham (1) | Canadian archaeologist, anthropologist |
| Truffaut, Francois (1) | French director and criticist |
| Truman, Harry Spencer (2) | the 33rd President of the United States |
| Trump, Donald (2) | American president, businessman and author |
| Tu |
| Tupac, Amaru Shakur (1) | American musician |
| Turing, Alan (1) | English mathematician |
| Turner, Alex (1) | English singer and songwriter |
| Tw |
| Twain, Mark (58) | American author |
| Ty |
| Tynan, Kenneth (1) | English author |
| Tyson, Mike (5) | American boxer |
| Tyson, Neil deGrasse (21) | American astrophysicist |
| Tz |
| Tzu, Lao (1) | Ancient Chinese philosopher, author of the Tao Te Ching |
| Tzu, Sun (1) | ancient Chinese military general and philosopher |