The B'Saari are an intelligent spacefaring species, native to the planet B'Saari II.

They were the first sentient species with whom the Denobulans made contact with prior to the 19 century AD. Before this encounter, most Denobulans had believed themselves to be the only intelligent species in the galaxy. Some refused to believe otherwise even with evidence to the contrary standing before them. (ENT: "Future Tense")

The B'Saari had a technique for reviving the dead not unlike the procedure done in the Earth film Frankenstein, although the revived weren't capable of more than basic neural and metabolic functions. (ENT: "Horizon")