USS Lexington (NCC-1709) personnel
The following personnel served aboard the   in 2268. 

It was that year that her entire crew came under attack by the M-5 multitronic unit during a Starfleet war games problem, of which 53 were killed during the initial attack by the . ()

Named 
 Commodore Bob Wesley
 Lieutenant

Unnamed

Bridge crew  

These three crewmembers were on the bridge of the USS Lexington when the ship was involved in a mock battle scenario against the USS Enterprise. A command division lieutenant and a sciences division crew woman assist an operations division lieutenant to the turbolift. ()

Command lieutenant 

This command division lieutenant served on the bridge of the USS Lexington when the ship was involved in a mock battle scenario against the USS Enterprise. She was monitoring bridge activities, including doings at the science station, while carrying an electronic clipboard. ()

Science officer 

This lieutenant science officer served on the bridge of the USS Lexington when the ship was involved in a mock battle scenario against the USS Enterprise. ()

Unnamed Humans
Unnamed Starfleet personnel (23rd century)