| Name | Meaning | Gender | Origin |
| Trilby | A Soft Hat | E | English |
| Trina | From Katarina | F | Slavic |
| Trinh | Pure | F | Vietnamese |
| Trini | The Trinity | F | Latin |
| Trinity | Holy Three | F | American |
| Trish | From Patricia | F | American |
| Trisha | Of Noble Descent | F | Latin |
| Trista | Sad | F | Celtic/Gaelic |
| Tristan | Bold/ melancholy. | M | Celtic/Gaelic |
| Tristana | Sad | F | Latin |
| Tristessa | Sad woman | F | Latin |
| Tristram | Sad | M | Welsh |
| Triveni | Three Sacred Rivers | F | Hindi |
| Trixie | Bringer of Joy | F | American |
| Trory | The Red One | M | African-American |
| Troy | Water or Footsoldier | M | Celtic/Gaelic |
| Truda | Warrior Woman | F | Polish |
| Trude | From GERTRUDE | F | German |
| Trudy | Adored Warrior | F | German |
| Trula | $1 | F | German |
| Truly | $1 | F | English |
| Truman | Faithful Man | M | German |
| Trumble | Mighty | M | English |
| Trung | Medium | E | Vietnamese |
| Truong | School/ field | M | Turkish |
| Trygg | $1 | M | Scandinavian |
| Tryna | Third | F | Greek |
| Trynt | Lives near the Stream | M | Welsh |
| Tryphena | Delicate | F | Greek |
| Tu | Not available | M | Vietnamese |
| Tuan | Not available | M | Vietnamese |
| Tuari | Young Eagle | M | Native American |
| Tucker | Tucker of Cloth | M | English |
| Tudor | Divine Gift | M | Welsh |
| Tuesday | Born on Tuesday | E | American |
| Tulia | Destined for Glory | F | Spanish |
| Tully | Calmness | E | Celtic/Gaelic |
| Tumo | Fame | M | African |
| Tupac | Warrior/ Messenger | M | African |
| Turi | Bear | M | Spanish |
| Turner | Lathe Worker | M | Latin |
| Tuvya | God's goodness | M | Hebrew |
| Tuwa | Earth | F | Native American |
| Tuyen | Angel | F | Vietnamese |
| Tuyet | Snow | F | Vietnamese |
| Twila | Third | F | English |
| Twyla | Third | F | English |
| Ty | Short for TYLER/TYRONE | E | American |
| Tyanne | From TYRUS & ANNE | F | American |
| Tybalt | He who Sees | M | Latin |