| Seanthan | Youthful with Divine Qualities |
| Seara | A bright and glowing morning star. |
| Searbhreathach | One who is a stern, just judge. |
| Searc | Blackbird; Saint |
| Searlait | Feminine form of Charles mannish |
| Searlas | A strong and free man of the land. |
| Searle | An armored and protective soldier. |
| Searlus | A free man of noble, strong spirit. |
| Searria | Searria is a variant of Serena, derived from the Latin word for 'clear' or 'bright'. |
| Season | Sowing, planting |
| Seath | A peaceful and protected dwelling. |
| Seaton | From Sai's estate. |
| Seaver | Fierce stronghold |
| Seaward | One who travels toward the ocean. |
| SEB | myth name (god of the earth) |
| Seba | A drunkard, that turns. |
| SEBAK | myth name (companion of Set) |
| Sebald | Se-bald (Sea Bald) Nickname for Balding Mermen |
| Sebasten | Venerable and highly respected |
| SEBASTENE | One who is greatly honored |
| Sebastian | From Sebaste, A town in Asia minor. |
| SEBASTIANA | feminine form of Sebastiano (revered) |
| Sebastiane | Derived from a revered city |
| Sebastiano | Spanish form of Sebastian revered |
| Sebastianus | From the ancient city Sebastia |
| Sebastien | A person worthy of reverence |
| Sebastiene | Feminine form of Sebastiano: revered. |
| Sebastienne | Feminine form of the revered |
| Sebastyn | Honoured above all others |
| Sebat | Twig, scepter, tribe. |
| Sebbe | Revered; Man from Sebaste |
| Sebeeya | Variant of Sebiya: Young girl. Girl. |
| Sebert | A bright and victorious ruler |
| SEBESTYEN | Hungarian form of Sebastian |
| Sebille | A wise and noble counselor |
| Sebin | Short Form of Sebastin - a Saint |
| Sebiya | Young girl. Girl. |
| Sebo | A short form of the name Sebert |
| Sebrina | A Welsh River Name; Boundary |
| Secacah | Shadow, covering, defense. |