| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| EUSTACHIUS | - | Late Roman | ||
| EUSTACHYS | - | Ancient Greek | ||
| EUSTACIA | - | English (Rare) | ||
| EUSTAQUIO | e-oo-STAH-kyo (Spanish) | Spanish, Portuguese | ||
| EUSTATHIOS | - | Ancient Greek | ||
| EUSTATHIUS | - | Ancient Greek (Latinized) | ||
| EUSTORGIO | - | Italian | ||
| EUSTORGIOS | - | Ancient Greek | ||
| EUSTORGIUS | - | Ancient Greek (Latinized) | ||
| EUTÍMIO | - | Portuguese | ||
| EUTERPE | - | Greek Mythology | ||
| EUTHALIA | - | Ancient Greek | ||
| EUTHYMIA | - | Ancient Greek | ||
| EUTHYMIOS | - | Ancient Greek | ||
| EUTHYMIUS | - | Ancient Greek (Latinized) |