T
The abbreviations in the "category" column are: A=anglicization T= traditional name Tr= Irish translation of a non-Irish name M= modern creation P= place name L= last name, S= saint name.
| Name (gender) | Category | Pronounciation | Other Forms | Origin/Meaning |
|---|---|---|---|---|
| Tadhg (m) | T,S | TYG | Teague, Tadc, Tadg, Tad, Thaddeus, Theodosius, Theophilus, Tim | poet |
| Taillte (f) | T | TAL tyeh | Teltina, Tailltiu | meaning is unknown |
| Tallula (f) | A,S | ta LOO la | Tuilelaith | lady of abundance |
| Tanaí (m) | T | TAHN ee | Tanaide | slender; subtle |
| Tara ( f, sometimes m) | P,S,A | TAR a | Teamhair | "assembly place", named for a Celtic goddess. The Hill of Tara was the traditional seat of the high king of Ireland. |
| Taryn | M | TAR in, TAIR in | Tarin | modern creation based on the name Tyrone |
| Teafa (f) | T | TYEF a | Tethba, Teffia | ? a place name in Co. Longford |
| Teague (m) | A,S | TAIG | Tadhg | "poet" |
| Teamhair (f) | T,S | TA wur | Tara, Teamair | elevated or assembly place. See Tara. |
| Teffia | P | TEF fee a | Teafa | ? from a place name in Longford |
| Téodóir (m) | Tr | TAI uh dor | Theodore | from Greek- "God's gift" |
| Tierney (m) | A | TEER nee | Tiarnach | "lord" |
| Tighearnach (m) | T,S | TEER nakh | Tierney, Tiarnach | "lord" |
| Tighearnán (m) | T,S | TEER nawn | lord- Tiernan, Tiarnán | "lord" |
| Tiobraide (m) | T | TYUB rid eh | Tipraite | meaning is unknown |
| Tíreachán (m) | T | TEER ach awn | Tírechán | "one possessed of lands"; "wide-ruling" |
| Toirdhealbhach (m) | T | TUR a lakh | Turlough, Tairdelbach, Charles | abettor |
| Toiréasa (f) | Tr | tur AI sa | Teresa | from Greek- meaning, perhaps "harvest" |
| Tóla (m) | T, S | TOE la | Tola | abundance, flood |
| Tomaltach (m) | T | TUM al tach | Timothy | ? |
| Tómmán | T, S | TOME awn | - | dim. of Tuama, which is of unknown meaning. |
| Torcán (m) | T | TURK awn | Torccán | wild boar |
| Torna (m) | T | TOR na | - | puffed-up? |
| Tory | P | TOR ee | tor | tower-like rock. Island off NW coast |
| Tracy | L | TRAY see | Ó Treasaigh | war like |
| Treasa (f) | T | TRA sa | Tressa, Trása, Teresa | strength |
| Treasach (m) | T | TRAS ach | Tressach | warlike; fierce |
| Tressa (f) | A | TRE sa | Treasa | strength |
| Tuama (m) | T, S | TOO uhm ma | Tómma | meaning is unknkown |
| Tuamnait (f) | T | TOO um nit | Tómnat | fem. of Tómmán |
| Tuathal (m) | T | TOO uh hul | Toal, Tully | "ruler of the people" |
| Tuathla (f) | T | TOO uh la | Tuathflaith | "princess of the people" |
| Tuilelaith (f) | T, S | TIL yeh la | Tailefhlaith, Tallula, Twilleliah | "lady of abundance"; "abundance of sovereignty" |
| Tulla | P | TUL la | Tulloch | little hill |
| Turlough (m) | A/P | TUR lukh | Toirdhealbhach | abettor |
| Tyrone | P | tur OAN | Tir Eoghan | Eoghan's land |