Elias Vaughn
- Full Name: Elias A. Vaughn
- Born: January 2275, Berengaria VII (TNG Novel: The Battle of Betazed; DS9 Novel: Avatar, Book One, Avatar, Book Two, Mission Gamma: Twilight)
- Described as "exactly a century old" in Battle of Betazed, suggesting he had already had his birthday by that work
- "A year past his centenary birthday" as of May 2376 per Mission Gamma: Twilight
- Species: Human
- Gender: Male
- Daughter: Prynn Tenmei
- Mother died of Burkhardt's disease c.2280 (DS9 Novel: Mission Gamma: Twilight)
- Presumptive by apparent age of Vaughn in text
- Mother born c.2235 (DS9 Novel: Mission Gamma: Twilight)
- November 2293: Cadet, Starfleet Academy
- September 2297: Ensign, Starfleet (TNG Novel: The Battle of Betazed)
- By 2311: Lieutenant, Starfleet (DS9 Novel: Avatar, Book One)
- By February 2375: Commander, tactical consultant, Starfleet; Starfleet Intelligence (TNG Novel: The Battle of Betazed)
- April 2376: Commander, executive officer, Starfleet; Deep Space 9 (DS9 Novel: Avatar, Book Two)
- By 2379: Captain, commanding officer, Starfleet; USS James T. Kirk (DS9 Novel: Gamma: Original Sin)