| Name | Meaning | Gender | Origin |
|---|
| Springer | jumper, leaper | Male | English |
| Sprite | Lemonade flavored soft drink. | Male | |
| Spunky | Spirited, plucky. | Male | |
| Sticky | | Unisex | Hebrew |
| Striker | | Male | |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | Literary |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | Literary |
| Sunny | Abounding in sunshine, cheerful | Male | Nickname |
| Suzy | Lily | Unisex | English |
| Tabasco | American spicy sauce made from red peppers. | Male | |
| Taco | A folded fried tortilla filled with meat, cheese and spices. | Unisex | |
| Tango | | Male | |
| Tara | A hill where the kings met
| Female | Irish |
| Taz | | Male | |
| Tempest | storm | Female | Word |
| Thor | Viking mythology: the ruler of the weather | Male | Norse |
| Thumper | To walk with heavy steps | Unisex | |
| Tia | Aunt
| Female | Spanish |
| Tigger | from Winnie the Pooh | Unisex | |
| Tony | priceless one | Male | English |
| Tornado | Violently rotating funnel shaped cloud. | Female | Spanish |
| Torque | | Unisex | Hebrew |
| Trixie | she who brings happiness | Female | Latin |
| Trixie | she who brings happiness | Female | Latin |
| Trouble | A cause of disturbance or difficulty. | Male | |