| SŁAwomir | | swah-VAW-meer | Polish | |
| SŁAwomira | | swah-vaw-MEE-rah | Polish | |
| Sabina | | sah-BEE-nah (Italian, Spanish, Polish) | Italian, Spanish, Portuguese, Romanian, Polish, Czech, Slovene, Russian, Croatian, Ancient Roman | |
| Salomea | | sah-law-ME-ah | Polish | |
| Samuel | | SAM-yoo-əl (English), SAM-yəl (English), sah-MWEL (Spanish), SAH-moo-el (Swedish, Finnish) | English, French, German, Dutch, Spanish, Portuguese, Polish, Czech, Slovak, Swedish, Norwegian, Dani | |
| Sebastian | | ze-BAHS-tee-ahn (German), sə-BAS-chən (English), se-BAHS-tyahn (Polish), SE-bahs-tee-ahn (Finnish) | German, English, Swedish, Norwegian, Danish, Polish, Finnish, Romanian | |
| Serafin | | se-RAH-feen | Polish | |
| Serafina | | se-rah-FEE-nah (Polish) | Italian, Portuguese, Spanish, Polish | |
| Sergiusz | | SER-gyuwsh | Polish | |
| Seweryn | | se-VE-rin | Polish | |
| Seweryna | | se-ve-RI-nah | Polish | |
| Siemowit | | - | Polish (Archaic) | |
| SobiesŁAw | | saw-BYES-wahf | Polish | |
| SobiesŁAwa | | saw-bye-SWAH-vah | Polish (Rare) | |
| StanisŁAw | | stah-NEE-swahf | Polish | |