L'Rell's battle cruiser (2256)
L'Rell's battle cruiser was a Klingon  battle cruiser that was in service in the mid-23rd century. This ship was commanded by L'Rell. The ship had a crew complement of between thirty and forty House of Mo'Kai warriors.

The cruiser was equipped with a tractor beam, and had at least five Klingon raider auxiliary craft attached.

In 2256, during the first , this ship was used as a prison ship in which captured Federation citizens were interrogated and tortured. Harcourt Fenton Mudd, , and  were held as prisoners aboard this ship. Lorca and Tyler escaped from this ship using a stolen raider. ()

Personnel 

Unnamed Klingon starships