| Tunnok | A strong and steady spirit. |
| Tunnoke | One who walks with purpose. |
| Tuomi | A name meaning cherry tree. |
| Tuomikki | A flower of the forest floor. |
| Tuovi | A name meaning new or fresh. |
| Tuovikki | A symbol of youthful spirit. |
| Tupaarnaq | A Greenlandic name meaning wild thyme. |
| Tupelo | A type of tree native to North America |
| Tuppence | A British slang term for two pennies |
| Tuqaat | God Consciousness |
| Turaab | An Arabic name meaning soil or earth. |
| Turandot | A character from an opera by Giacomo Puccini |
| Turfah | Blessings, Good Things of Life |
| Turgiua | A name meaning a guardian of the gate. |
| Turha | A Finnish name meaning vain or useless. |
| Turid | A Norwegian name meaning 'strong and powerful' |
| Turkessa | A Turkish name meaning 'strong and steadfast' |
| Turquoise | A blue-green mineral used in jewelry |
| Tusajigwe | A name meaning one who hears the truth. |
| Tushaibah | A name meaning a gift of pure beauty. |
| Tushi | A name meaning a person of great charm. |
| Tusitha | A name meaning a seeker of true peace. |
| Tusmita | A name meaning one with a sweet smile. |
| Tutku | A deep passion or intense desire. |
| Tuua | To bring something to a location. |
| Tuula | A Finnish name meaning wind gust. |
| Tuule | An Estonian name meaning wind. |
| Tuulia | A name meaning calm or gentle wind. |
| Tuuna | To tune or adjust something well. |
| Tuuris | Woman of the Sea |
| Tuuwa | A name meaning to bring or carry. |
| Tuva | A region in southern Siberia, Russia |
| Tuzel | A name meaning law or legal rule. |
| Twaiba | One who is good or virtuous nature. |
| Twana | The Tribe of the Vandals |
| Twiggy | Slender and thin like a small twig. |
| Twilight | Time of day when day meets night, often associated with mystery and romance. |
| Twilla | Diminutive form of Willa, meaning 'resolute protector' or 'strong-willed woman'. |
| Twylla | Woven with a Double Thread |
| Tya | A name meaning a princess or queen. |