| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Theodorus | - | Ancient Greek (Latinized), Dutch | ||
| Theodosia | - | Ancient Greek, Greek | ||
| Theodosios | - | Ancient Greek | ||
| Theodosius | - | Ancient Greek (Latinized) | ||
| Theodotos | - | Ancient Greek | ||
| Theodotus | - | Ancient Greek (Latinized) | ||
| Theodoulos | - | Ancient Greek | ||
| Theodulus | - | Ancient Greek (Latinized) | ||
| Theokleia | - | Ancient Greek | ||
| Theokritos | - | Ancient Greek | ||
| Theophanes | - | Ancient Greek | ||
| Theophania | - | Ancient Greek | ||
| Theophila | - | Ancient Greek | ||
| Theophilos | - | Ancient Greek | ||
| Theophilus | thee-AHF-ə-ləs (English) | Biblical, Ancient Greek (Latinized) |