| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| SEO-YEON | su-yun | Korean | ||
| SEO-YUN | su-yoon | Korean | ||
| SEPI | SE-pee | Finnish | ||
| SEPP | ZEP | German | ||
| SEPPEL | - | German | ||
| SEPPHORA | - | Biblical Greek | ||
| SEPPO (1) | SEP-po (Finnish) | Finnish, Finnish Mythology | ||
| SEPPO (2) | SEP-po | Finnish | ||
| SEPTEMBER | sep-TEM-bər | English (Rare) | ||
| SEPTIMA | - | Ancient Roman, Spanish | ||
| SEPTIMIUS | - | Ancient Roman | ||
| SEPTIMUS | - | Ancient Roman | ||
| SEQUOIA | sə-KOI-ə | English (Rare) | ||
| SERA | SER-ə | English (Rare) | ||
| SERAFEIM | - | Greek |