| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 241 | Talar | Welsh | From the headland in the field. | F | |
| 242 | Tangwen | Welsh | Legendary daughter of Gweir. | F | |
| 243 | Tarian | Welsh | Shield. | F | |
| 244 | Tarren | Welsh | From the knoll. | F | |
| 245 | Tegan | Welsh | Beautiful. | F | |
| 246 | Tegwan | Welsh | Beautiful and fair. | F | |
| 247 | Teleri | Welsh | Legendary daughter of Peul. | F | |
| 248 | Telyn | Welsh | Harp. | F | |
| 249 | Terrwyn | Welsh | Brave. | F | |
| 250 | Toreth | Welsh | Abundant. | F | |
| 251 | Torlan | Welsh | From the river bank. | F | |
| 252 | Torri | Welsh | Break. | F | |
| 253 | Tristyn | Welsh | Feminine of Tristan: noisy;full of sorrows. | F | |
| 254 | Una | Welsh | White wave. | F | |
| 255 | Vala | Welsh | Chosen. | F | |
| 256 | Vanora | Welsh | White wave. | F | |
| 257 | Win | Welsh | Diminutive of Winifred: Blessed reconciliation. | F | |
| 258 | Winefred | Welsh | White wave. Also a variant of Winifred: Blessed reconciliation. | F | |
| 259 | Winifred | Welsh | Reconciled; blessed. Historically Winifred was a martyred Welsh princess; traditionally the patron saint of virgins. | F | |
| 260 | Winnie | Welsh | Diminutive of Winifred: Blessed reconciliation. | F | |