| Girl | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Boy | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Girl | ||||||||||||
| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Boy | ||||||||||||
| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Name | Meaning | Gender | Numerology |
|---|---|---|---|
| Theresa | Summer Harvest, One who Reaps | Girl | 4 |
| Thinus | TBD | Boy | 1 |
| Thom | A Twin, Oldest One, Large | Boy | 2 |
| Thomas | Twin Master of Air Bending | Boy | 4 |
| Thurl | Strong fort | Boy | 7 |
| Thurl | Strong Fort | Boy | 7 |
| Thurle | Strong Fort | Boy | 3 |
| Thurle | Strong fort | Boy | 3 |
| Tiamhdha | Honour Respect God | Boy | 1 |
| Tiarchnach | Regal | Boy | 4 |
| Tiarnach | Noble Lordly | Boy | 2 |
| Tiarnach | Regal | Boy | 2 |
| Tiarnan | Lord Lordly Ruler | Boy | 5 |
| Tibbot | Form of Theobald | Boy | 5 |
| Tibbot | Peoples prince | Boy | 5 |
| Tiege | Honour | Boy | 1 |
| Tier | Regal | Boy | 7 |
| Tier | Regal | Boy | 7 |
| Tiernan | Master Lordly Regal Little Lord | Boy | 9 |
| Tiernan | Regal | Boy | 9 |
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| Tierney | Lord Master Regal | Boy | 6 |
| Tierney | Noble | Girl | 6 |
| Tierney | Regal | Boy | 6 |
| Tieve | Hillside | Girl | 7 |
| Tigernach | A Lord | Boy | 4 |
| Tigernaci | A Lord | Boy | 5 |
| Tigernaich | A Lord | Boy | 4 |
| Tigernan | A Lord | Boy | 7 |
| Tigernmaglus | Lordly Prince | Boy | 2 |
| Tighe | Poet, Bard, Handsome | Boy | 4 |
| Tighearnach | Regal | Boy | 4 |
| Tighearnach | Regal | Boy | 4 |
| Tighearnan | A Lord | Boy | 7 |
| Tighernach | A Lord | Boy | 3 |
| Tigress | Tiger | Girl | 7 |
| Tigris | River in Southeast Asia | Girl | 1 |
| Tim | One who Honours God, To Fear God | Boy | 6 |
| Timothy | Honouring God, Name of a Saint | Boy | 2 |
| Tioboid | Bold | Boy | 2 |
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| Tipper | Nickname Variant of Tabar A Well | Girl | 3 |
| Tipper | Nickname Variant of Tabar A Well | Boy | 3 |
| Tipper | Water pourer | Girl | 3 |
| Tipraite | A Well | Boy | 8 |
| Tireoghan | Eoghans Land | Boy | 7 |
| Tirloch | Abettor Instigator | Boy | 4 |
| Tlachtga | Earth Spear | Girl | 9 |
| Toal | Peoples Ruler | Boy | 3 |
| Toiboid | Brave | Boy | 2 |
| Toimilin | Little Twin | Boy | 2 |
| Toirdhealbhach | Abettor Instigator | Boy | 6 |
| Toirdhealbharch | Abettor Instigator | Boy | 6 |
| Toirealach | Abettor Instigator | Boy | 2 |
| Toireasa | Strong | Girl | 7 |
| Toireasa | Strong | Girl | 7 |
| Tom | Twin Form of Thomas Honest | Boy | 3 |
| Tomaas | Twin | Boy | 6 |
| Tomag | Twin | Boy | 2 |
| Tomaisin | Twin | Boy | 1 |
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| Tomaltock | Honouring God | Boy | 2 |
| Tomas | Rock Twin A Form of Thomas | Boy | 5 |
| Tomas | Bright Radiant | Girl | 5 |
| Tomey | Twin | Boy | 6 |
| Tomlin | Little Twin Twin | Boy | 2 |
| Tommy | Twin Form of Thomas | Boy | 5 |
| Tommy | Twin | Girl | 5 |
| Tor | King, Tower, Watchtower | Boy | 8 |
| Tor | Watchtower | Boy | 8 |
| Toran | Watchtower | Boy | 5 |
| Toran | Watchtower | Boy | 5 |
| Torcan | Wild Boar | Boy | 8 |
| Tore | Fighter of Thor, Little Hills | Boy | 4 |
| Torean | Watchtower, From the Craggy Hills | Boy | 1 |
| Torean | Watchtower | Boy | 1 |
| Toren | Watchtower | Boy | 9 |
| Toren | Watchtower | Boy | 9 |
| Torence | Variant of Torrence | Boy | 8 |
| Torence | Watchtower | Boy | 8 |
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| Torey | Watch Tower | Boy | 2 |
| Toria | Conqueror Victory Princess | Girl | 9 |
| Torian | Chief | Boy | 5 |
| Torin | Watchtower | Boy | 4 |
| Torin | Chief Watchtower Little Hills | Boy | 4 |
| Torion | Watchtower, Variant of Torrence | Boy | 1 |
| Torion | Watchtower | Boy | 1 |
| Tormaigh | Thunder Spirit | Boy | 1 |
| Tormaigh | Thunder spirit | Boy | 1 |
| Tormey | Thunder Spirit | Boy | 6 |
| Tormey | Thunder spirit | Boy | 6 |
| Torn | From the Thorny Tree, Tender | Boy | 4 |
| Torna | Puffed Up Prince Noble | Boy | 5 |
| Torr | Watch Tower Tower Little Hills | Boy | 8 |
| Torran | Variant of Torrence | Boy | 5 |
| Torran | Watchtower | Boy | 5 |
| Torrance | Soft or Tender, Watchtower | Boy | 4 |
| Torrance | Watchtower | Boy | 4 |
| Torrans | From the Knolls | Boy | 6 |