| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 2821 | Side | Latin | Wife of Orion. | F | |
| 2822 | Sidera | Latin | Luminous. | F | |
| 2823 | Siderea | Latin | Luminous. | F | |
| 2824 | Sideria | Latin | Luminous. | F | |
| 2825 | Sidero | Latin | An evil nymph. | F | |
| 2826 | Sidney | Latin | Variant of Sidony: Woman of Sidon (ancient city). | F | |
| 2827 | Sidonia | Latin | Variant of Sidony: Woman of Sidon (ancient city). | F | |
| 2828 | Sidonie | Latin | Variant of Sidony: Woman of Sidon (ancient city). | F | |
| 2829 | Sidony | Latin | Woman of Sidon (ancient city). | F | |
| 2830 | Sidra | Latin | Luminous. | F | |
| 2831 | Signa | Latin | Sign. | F | |
| 2832 | Signe | Latin | Sign. | F | |
| 2833 | Signia | Latin | Sign. | F | |
| 2834 | Sil | Latin | Of the forest. | M | |
| 2835 | Silas | Latin | Variant of Silvanus: Of the forest. God of trees and forests. In the bible, Silas was a missionary companion of Paul and Timothy. | M | |
| 2836 | Silio | Latin | Of the forest. | M | |
| 2837 | Silka | Latin | Blind. | F | |
| 2838 | Silke | Latin | Blind. | F | |
| 2839 | Silkie | Latin | Blind. | F | |
| 2840 | Sill | Latin | Of the forest. | M | |