| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Seoc | - | Scottish | ||
| Seoirse | SHOR-sha | Irish | ||
| Seona | - | Scottish | ||
| Seonag | SHO-nahk | Scottish | ||
| Seosamh | SHO-sav | Irish | ||
| Sepi | SE-pee | Finnish | ||
| Seppo (1) | SEP-po (Finnish) | Finnish, Finnish Mythology | ||
| Seppo (2) | SEP-po | Finnish | ||
| September | sep-TEM-bər | English (Rare) | ||
| Septima | - | Ancient Roman, Spanish | ||
| Sequoia | sə-KOI-ə | English (Rare) | ||
| Sera | SER-ə | English (Rare) | ||
| Serafim | - | Russian, Romanian, Macedonian | ||
| Serafima | sye-rah-FEE-mah (Russian), see-rah-FEE-mah (Russian), se-rah-FEE-mah (Macedonian) | Russian, Macedonian | ||
| Serafin | se-RAH-feen | Polish |