| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 381 | Ffanci | Welsh | Fancy. | F | |
| 382 | Fferyll | Welsh | Welsh form of Virgil 'bears the staff'. | M | |
| 383 | Fflergant | Welsh | Legendary king of Brittany. | M | |
| 384 | Fflewdwr | Welsh | Legendary son of Naw. | M | |
| 385 | Ffodor | Welsh | Legendary son of Ervyll. | M | |
| 386 | Ffowc | Welsh | Of the people. | M | |
| 387 | Ffraid | Welsh | Welsh form of Bridget: strong. | F | |
| 388 | Floyd | Welsh | Variant of Lloyd: Grey. One with grey hair. In common use as both a surname and first name. | M | |
| 389 | Fnam | Welsh | Legendary son of Nwyvre. | M | |
| 390 | Folant | Welsh | Strong. | M | |
| 391 | Freda | Welsh | Diminutive of Winifred: Blessed reconciliation. | F | |
| 392 | Fychan | Welsh | Small. | M | |
| 393 | Fyrsil | Welsh | Welsh form of Virgil 'bears the staff'. | M | |
| 394 | Gaenor | Welsh | A variant of the Gaelic Gaynor, meaning 'son of the blond man'. | M | |
| 395 | Garan | Welsh | Stork. | F | |
| 396 | Garanhon | Welsh | Legendary son of GIythvyr. | M | |
| 397 | Garanwyn | Welsh | White shank. | M | |
| 398 | Gareth | Welsh | Gentle. Modest and brave Sir Gareth was a legendary knight of King Arthur's Round Table. | M | |
| 399 | Garnoc | Welsh | Dwells by the alder tree river. | M | |
| 400 | Garnock | Welsh | Dwells by the alder tree river. | M | |