A hospital ship was a medical spacecraft often accompanying large or medium-sized military fleets to provide back-up in battle, though it was also sometimes found without military company. Hospital ships were mobile hospitals equipped with medical gear, such as bacta tanks and medical droids.
MedStar-class frigates functioned both as medical transport ships and hospital ships during the Clone Wars, being manned by top class medics and, in some cases, also Jedi healers. Pelta-class frigates were used as well during the Clone Wars with the MedStar-class frigate.
During the Galactic Civil War, EF76 Nebulon-B escort frigates, and at least one Nebulon-B2 frigate, were sometimes converted into hospital ships, by gutting the internal hangar bay out to make room for an internal hospital. Luke Skywalker was healed aboard such a converted Nebulon-B frigate after having lost his hand by the lightsaber of Darth Vader.
Another former military vessel converted into a hospital ship was the Mercy, a two-kilometer-long former Imperial spaceship, appropriated by the Rebels during the Galactic Civil War. It was aboard this ship that Kyle Katarn was healed in Ward 114's bacta tank 23 after having been injured during his second mission to Nar Shaddaa.
Another famous hospital ship was the Sudden Restoration. Manned by Carosite physicians, it offered free health care to all, and often worked in systems ravaged by recent battles. Hospital ships were also utilized heavily by the New Republic Relief Corps.
- MedStar I: Battle Surgeons
- MedStar II: Jedi Healer
- Jedi Trial
- Star Wars: Obsession 5
- Labyrinth of Evil
- Death Star
- Star Wars: Rogue Squadron II: Rogue Leader
- Star Wars Episode V: The Empire Strikes Back (First appearance)
- "Special Ops: Drop Points"—Star Wars Adventure Journal 14
- Star Wars Episode VI: Return of the Jedi
- One Last Night in the Mos Eisley Cantina: The Tale of the Wolfman and the Lamproid (Mentioned only)
- Dark Forces: Rebel Agent
- X-Wing: Rogue Squadron
- X-Wing: Solo Command
- The New Jedi Order: Enemy Lines I: Rebel Dream
- The New Jedi Order: Ylesia
- The New Jedi Order: The Unifying Force
- Dark Nest III: The Swarm War (Mentioned only)
- The Star Wars Sourcebook
- Galaxy Guide 2: Yavin and Bespin, First Edition (As "medical frigate")
- Planets of the Galaxy, Volume Two
- Galaxy Guide 3: The Empire Strikes Back
- Rebel Alliance Sourcebook, Second Edition
- The Complete Star Wars Encyclopedia