The USS Thelenth (NCC-4305) was a Larson-class Federation starship in service in the 23rd century, named in honor of Admiral Thelenth.
She entered active service on reference stardate 1/8804. On stardate 1/9806, the Thelenth re-entered service after undergoing a refit to mk II specifications. She was later refit to mk VI specifications and relaunched on stardate 2/1202, and then later to mk VII specifications on stardate 2/1503. (FASA RPG module: Federation Ship Recognition Manual)