| Name | In Local | Meaning | Gender |
|---|
| Rosica | Росица | Dew | Girl |
| Rositsa | Росица | Dew | Girl |
| Roza | Роза | Rose, Dew | Girl |
| Ruzha | Ружа | Rose, Dew | Girl |
| Samuil | Самуил | God Has Hearkened | Boy |
| Sasho | Сашо | Defender Of Mankind | Boy |
| Sava | Сава | Wise, Old Man | Boy |
| Sergei | Сергей | Servant, Loyal | Boy |
| Sergej | Сергей | Servant, Loyal | Boy |
| Sergey | Сергей | Servant, Loyal | Boy |
| Silva | Силва | From The Forest | Girl |
| Silviya | Силвия | From The Forest | Girl |
| Simeon | Симеон | | Boy |
| Snezhana | Снежана | Snow Woman | Girl |
| Sofiya | София | Wisdom | Girl |
| Spas | Спас | Saved | Boy |
| Stanimir | Станимир | Peace | Boy |
| Stanislav | Станислав | Glory | Boy |
| Stanislava | Станислава | Glory | Girl |
| Stanka | Станка | Glory | Girl |
| Stanko | Станко | Glory | Boy |
| Stefan | Стефан | Crown | Boy |
| Stoyan | Стоян | To Stand, To Stay | Boy |
| Stoyanka | Стоянка | To Stand, To Stay | Girl |
| Svetlana | Светлана | Light, World | Girl |
| Svetoslav | Светослав | | Boy |
| Tase | Тасе | | Boy |
| Tatiana | Татяна | | Girl |
| Teodor | Теодор | | Boy |
| Teodora | Теодора | Theodoros | Girl |
| Tereza | Тереза | Harvester | Girl |
| Tihomir | | Quiet Peace | Boy |
| Timotei | Тимотей | To Honor God | Boy |
| Todor | Тодор | Gift Of God | Boy |
| Todorka | Тодорка | Gift Of God | Girl |
| Toma | Тома | Palm Tree | Boy |
| Tsveta | Цвета | Colour, Flower | Girl |