The Defiant starlog was the method used by Jonathan Archer aboard the USS Defiant (NCC-1764) to officially record the ship's missions. At least one starlog entry was recorded in 2155, following Archer's acquisition of the ship. (ENT: "In a Mirror, Darkly, Part II")
- "Defiant Starlog, January 18, 2155. We've recovered the missing engine components and I've ordered a course to rendezvous with the assault fleet."