| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Seo-Hyun | su-hyun | Korean | ||
| Seo-Joon | su-joon | Korean | ||
| Seo-Jun | su-joon | Korean | ||
| Seok | suk | Korean | ||
| Seong | sung | Korean | ||
| Seong-Ho | sung-ho | Korean | ||
| Seong-Hun | sung-hoon | Korean | ||
| Seong-Hyeon | sung-hyun | Korean | ||
| Seong-Jin | sung-jeen | Korean | ||
| Seong-Min | sung-meen | Korean | ||
| Seong-Su | sung-soo | Korean | ||
| Seo-Yeon | su-yun | Korean | ||
| Seo-Yun | su-yoon | Korean | ||
| Sepp | ZEP | German | ||
| Seppel | - | German |