| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 5761 | Siddell | English | From the wide valley. | M | |
| 5762 | Sidell | English | From the wide valley. | M | |
| 5763 | Sidney | English | Wide Island: south of the water. This name has recently become popular for girls as well as boys. Famous Bearer: actor Sidney Poitier. | M | |
| 5764 | Sidwell | English | From the broad well. | M | |
| 5765 | Sigehere | English | Victorious. | M | |
| 5766 | Silas | English | Variant of Sylvanus from a Greek name meaning 'forest; woods.' In the bible Silas was a missionary companion of Paul and Timothy. | M | |
| 5767 | Silsby | English | From Sill's farm. | M | |
| 5768 | Silvester | English | Trees; sylvan. See also Sylvester and Silvano. | M | |
| 5769 | Simeon | English | Variant of Simon meaning 'hear; listen.'. | M | |
| 5770 | Simon | English | Variant of a Hebrew name meaning 'hear; listen.' In the bible Simon was the name of two apostles including Simon Peter. | M | |
| 5771 | Sinclair | English | St. Clair. | M | |
| 5772 | Sinclaire | English | St. Clair. | M | |
| 5773 | Sinead | English | Jehovah has been gracious; has shown favour. A Feminine form of John. Variant of Joan. From the Old French Jehane. Famous Bearer: American actress Jayne Mansfield (1932-67). | F | |
| 5774 | Sinjin | English | St. John. | M | |
| 5775 | Siobhan | English | Variant of Joan: God is gracious. Feminine form of John Famous Bearers: Legendary Pope Joan, who was a woman masquerading as a man; French heroine Joan of Arc (Jeanne dArc); actresses Joan Crawford, Joan Fontaine, and Joan Collins. | F | |
| 5776 | Sisley | English | A variant of Cecilia, and the most common form of the name in the. | F | |
| 5777 | Sissie | English | Diminutive of Christie: Diminutive of any name begining with Christ-, for example Christahel, Christian, or Christopher. Variant of Christiana. Follower of Christ. Diminutive of Cecilia: A feminine form of Cecil, meaning blind. | F | |
| 5778 | Sissie | English | Diminutive of Christie: Diminutives of any masculine or feminine name begining with Christ-, for example Christahel, Christian, or Christopher. | M | |
| 5779 | Sissy | English | Diminutive of Christie: Diminutive of any name begining with Christ-, for example Christahel, Christian, or Christopher. Variant of Christiana. Follower of Christ. Diminutive of Cecilia: A feminine form of Cecil, meaning blind. | F | |
| 5780 | Sissy | English | Diminutive of Christie: Diminutives of any masculine or feminine name begining with Christ-, for example Christahel, Christian, or Christopher. | M | |