A Starfleet hospital ship class with a distinctive spherical forward hull, best known for the USS Pasteur.
The Olympic-class was a Starfleet design built for medical duties, with a large spherical primary hull ahead of its engineering section and nacelles. Ships of the class served as hospital and medical support vessels.
The best-known Olympic-class ship was the USS Pasteur, seen in the alternate future of All Good Things... under the command of Beverly Crusher, with a retired Jean-Luc Picard aboard. Searching for the anomaly in the Devron system, the Pasteur was attacked by Klingon ships and destroyed, though its crew was beamed to safety by the Enterprise under Admiral William Riker.