| Name | Meaning | Gender | Origin |
|---|
| Sunflower | | Unisex | |
| Sunkiss | | Unisex | |
| Sunkist | | Unisex | |
| Sunrise | | Unisex | |
| Sunset | Daily disappearance of the sun below the horizon. Usually red, yellow or orange in colour. | Unisex | |
| Sunshine | Rays from the sun. Cheerfulness | Female | Word |
| Susie | Hebrew, lily | Female | English |
| Taco | A folded fried tortilla filled with meat, cheese and spices. | Unisex | |
| Taittinger | | Unisex | Hebrew |
| Tally | gentle dew from heaven | Female | English |
| Tang | | Unisex | |
| Tangerine | From Tangiers
| Female | Word |
| Tapioca | Starch used for puddings and as a thickening agent in cooking. | Unisex | |
| Tasha | Russian diminutive of Natalya, birthday of the Lord | Female | English |
| Tatiana | | Female | |
| Taxi | | Unisex | |
| Tequila | An alcoholic liquor distilled from mescal. | Female | Spanish |
| Tequila Sunrise | | Unisex | Hebrew |
| Tequilla | | Unisex | |
| Tessa | Abbreviation of Teresa which is a popular saint's name of uncertain meaning.
| Female | English |
| Thea | goddess, sort | Female | Greek |
| Tia | Aunt
| Female | Spanish |
| Tiger Lily | | Unisex | |
| Tigger | from Winnie the Pooh | Unisex | |
| Tigress | | Female | |