The Captain's starlog on Enterprise NX was the starlog used by the Captain Jonathan Archer to record the events of this ship, as he perceived them, officially. (ENT: "Fight or Flight")

Beginnning in 2152, it was occassionally referred to as a captain's log. (ENT: "The Seventh")

Logs and starlogs of Enterprise (NX-01)
Captain's starlogs: 2151 • 2152 • 2153 • 2154 • 2155
Personal logs: Captain's personal log • Jonathan Archer • Malcolm Reed
Other starlogs: Acting captain's starlog • Chief engineer's log • Chief medical officer's log • Enterprise starlog • First officer's log • Science officer's log

Notable captain's logs
22nd century: Enterprise (NX-01)
23rd century: HMS Bounty • USS Constellation • USS Enterprise (NCC-1701) • USS Enterprise (NCC-1701-A) • USS Excelsior
24th century: USS Brattain • Deep Space 9 • USS Defiant • Delta Flyer • USS Enterprise (NCC-1701-D) • USS Enterprise (NCC-1701-E) • USS Lantree • USS Voyager