Vault K-23, situated in the northeastern part of Varactyl Vale, a sector within the Minimum Security Section of the Republic's Belsavis prison on the planet Belsavis, was the title given by the Galactic Republic to a Rakatan vault. In the course of the invasion of Belsavis during the Galactic War, following their acquisition of medical provisions for the wounded pilots of Dagger Wing, Havoc Squad met with the wing at Vault K-23, successfully defending it against an Imperial attack.
Within the video game Star Wars: The Old Republic, Vault K-23 is featured as a phase restricted to a specific class on Belsavis, specifically during the Trooper class mission entitled "Change In Plans".