| Name | Meaning | Gender | Origin |
|---|
| Felisberta | Intelligent
| Female | |
| Felix | Lucky
| Male | Latin |
| Fernanda | Adventurous. Feminine of Fernando.
| Female | Spanish |
| Fernando | bold voyager | Male | Spanish |
| Figo | | Unisex | Hebrew |
| Francisca | Variant of Frances meaning From France or free one.
| Female | |
| Francisco | Variant of Frank Free: a free man.
| Male | Spanish |
| Frascuelo | Free
| Male | |
| Fred | From Frederick - Peaceful ruler. | Male | |
| Frederica | Peaceful, Powerful Ruler | Female | Italian |
| Frederico | Peaceful ruler.
| Male | |
| Gabriel | God is my strength
| Male | Hebrew |
| Garcia | after Jerry Garcia, the Grateful Dead | Male | Spanish |
| Gatinha | Portuguese for little cat | Unisex | |
| Gilda | God's servent | Female | English |
| Gloria | glory | Female | Latin |
| Guga | after the tennis player Gustavo Kuerten | Unisex | |
| Helena | bright, shining one | Female | Latinate |
| Hugo | Intelligent
| Male | Latinized |
| Humberto | Big: bright.
| Male | |
| Iago | Supplanter
| Male | Welsh |
| Ida | prosperous | Female | |
| Inez | pure, virginal | Female | Portuguese |
| Irene | Peace
| Female | Greek |
| Iris | rainbow, a play of colours | Female | |