| Serafina | | se-rah-FEE-nah (Polish) | Italian, Portuguese, Spanish, Polish | |
| Seraphina | | - | English (Rare), German (Rare), Late Roman | |
| Serdar | | - | Turkish | |
| Seren | | - | Welsh | |
| Serena | | sə-REEN-ə (English), se-RE-nah (Italian) | English, Italian, Late Roman | |
| Serenity | | sə-REN-i-tee | English (Modern) | |
| Sergei | | syer-GYAY (Russian), seer-GYAY (Russian) | Russian, Bulgarian | |
| Sergej | | syer-GYAY (Russian), seer-GYAY (Russian) | Russian, Bulgarian | |
| Sergey | | syer-GYAY (Russian), seer-GYAY (Russian) | Russian, Bulgarian | |
| Sergio | | SER-jo (Italian), SER-khyo (Spanish) | Italian, Spanish | |
| Sergiusz | | SER-gyuwsh | Polish | |
| Serhan | | - | Turkish | |
| Serhat | | - | Turkish | |
| Serina | | sə-REEN-ə | English | |
| Serkan | | - | Turkish | |