| Name | Meaning | Gender | Origin |
|---|
| Flash | To move rapidly. | Male | Word |
| Flint | born near outcrop of flint | Male | English |
| Flip | Lover Of Horses | Unisex | English |
| Flippy | | Unisex | Hebrew |
| Florence | after Florence Nightingale | Female | Latin |
| Floyd | after Pink Floyd | Male | Welsh |
| Fluffy | Covered with fluff, Soft, light and airy. | Unisex | |
| Flurry | Prince, King | Unisex | Irish |
| Foggy | | Unisex | Hebrew |
| Foster | forest keeper | Male | Occupational |
| Francis | Frenchman or free man | Male | Latin |
| Frankie | Diminutive of Frank Free: a free man. Frankie is occasionally used for girls.
| Male | |
| Freckles | Dotted with small brownish spots. | Unisex | |
| Fred | From Frederick - Peaceful ruler. | Male | |
| Freeway | | Unisex | Hebrew |
| Friskie | | Unisex | Hebrew |
| Frisky | | Unisex | Hebrew |
| Frodo | from The Lord of the Rings | Male | Literary |
| Fruitbat | | Unisex | Hebrew |
| Fruity | | Unisex | Hebrew |
| Fudge | A soft, rich candy | Male | |
| Fuzzbutt | | Unisex | Hebrew |
| Fuzzy | | Male | Hebrew |
| Fuzzy | | Male | Hebrew |
| Gabriella | Strength Of God | Female | Hungarian |