| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Grega | - | Slovene | ||
| Greger | - | Swedish | ||
| Gregers | - | Danish, Norwegian | ||
| Gregg | GREG | English | ||
| Gregor | GRE-gawr (German) | German, Scottish, Slovak, Slovene | ||
| Gregorio | gre-GO-ryo | Italian, Spanish | ||
| Gregory | GREG-ə-ree | English | ||
| Greig | GREG | Scottish | ||
| Grenville | GREN-vil | English (Rare) | ||
| Gresham | GRESH-əm | English (Rare) | ||
| Greta | GRE-tah (German), GRET-ə (English) | Swedish, German, English | ||
| Gretchen | GRET-khen (German), GRECH-ən (English) | German, English | ||
| Grete | GRE-tə (German) | German, Danish, Norwegian | ||
| Grethe | - | Danish, Norwegian | ||
| Gretta | GRET-ə | English |