| Gaspar | | gah-SPAHR (Spanish) | Spanish, Portuguese, Judeo-Christian Legend | |
| GastÓN | | - | Spanish | |
| Gema | | - | Spanish | |
| Genoveva | | he-no-VE-vah (Spanish), zhə-noo-VE-və (Portuguese) | Spanish, Portuguese | |
| Georgina | | jor-JEE-nə (English) | English, Dutch, German, Spanish | |
| GerÓNimo | | - | Spanish | |
| Geraldo | | he-RAHL-do (Spanish) | Spanish, Portuguese | |
| Gerardo | | je-RAHR-do (Italian), he-RAHR-do (Spanish) | Italian, Spanish | |
| GermÁN | | - | Spanish | |
| Gertrudis | | - | Spanish | |
| Gervasio | | jer-VAH-zyo (Italian), her-BAH-syo (Spanish) | Italian, Spanish | |
| Gil (1) | | HEEL (Spanish), ZHEEL (Portuguese) | Spanish, Portuguese | |
| Gilberto | | jeel-BER-to (Italian), heel-BER-to (Spanish) | Italian, Spanish, Portuguese | |
| Gisela | | - | German, Dutch, Spanish, Portuguese | |
| Glauco | | GLOW-ko (Italian, Spanish) | Italian, Spanish, Portuguese | |