S'Task
- Full Name: S'Task
- Born: 3rd-4th century, Vulcan
- Species: Vulcan
- Gender: Male
- Historical Vulcan figure
- Student of Surak (TOS Novel: Vulcan's Soul: Exiles)
- Lead figure initiating division between eventual Romulan people following philosophical schism with Surak (TOS Novel: Vulcan's Soul: Exiles; ENT Novel: To Brave the Storm)
- Often considered the figurehead of the Sundering by Romulan people in later years
- Survived to settlement on Romulus (TOS Novel: Vulcan's Soul: Exiles)
- Death: 5th century, Romulus