| Name | Meaning | Gender | Origin |
|---|
| Seiko | Good name for a watchdog. | Unisex | |
| Sen | | Female | |
| Shika | deer | Unisex | |
| Shino | Japanese for a long thin piece of bamboo | Unisex | |
| Shiro | | Unisex | |
| Shoda | | Unisex | Hebrew |
| Siki | | Unisex | Hebrew |
| Snoopy | | Male | |
| Sonia | wisdom | Female | Russian |
| Sonny | A boy or young man. | Male | Nickname |
| Sora | Chirping Songbird | Unisex | Native American |
| Suki | beloved | Female | Japanese |
| Sumi | clear, refined | Female | Japanese |
| Sumo | Form of wrestling. | Unisex | |
| Sushi | Raw fish. | Unisex | |
| Sushi | Raw fish. | Unisex | |
| Taji | | Unisex | |
| Taka | Native American for rat cat | Unisex | |
| Takara | Precious stones or treasure.
| Female | Japanese |
| Tama | Jewel | Unisex | Japanese |
| Tara | A hill where the kings met
| Female | Irish |
| Taro | Japanese - first born boy. Edible starchy plant. | Unisex | |
| Taya | young | Female | Japanese |
| Tenshi | | Unisex | |
| Tom | Bartender at the Leaky Cauldron.
| Male | English |