The Guinean horseshoe bat (Rhinolophus guineensis ) is a species of bat in the family Rhinolophidae. It is found in Ivory Coast, Guinea, Liberia, Senegal, and Sierra Leone. Its natural habitats are subtropical or tropical dry forest, subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, moist savanna, caves, and subterranean habitats (other than caves). It is threatened by habitat loss.
It is considered "medium-sized" for an African horseshoe bat.Its forearm length is 44–50 mm (1.7–2.0 in) and individuals weigh 8–11 g (0.28–0.39 oz).Its dental formula is 1.1.2.32.1.3.3 for a total of 32 teeth.
Its range includes several countries in West Africa such as Ivory Coast, Guinea, Liberia, Senegal, and Sierra Leone.It is found in high elevations greater than 1,400 m (4,600 ft) above sea level.
As of 2008, it is listed as an endangered species by the IUCN.It meets the criteria for this assessment because its area of occupancy is likely smaller than 2,000 km2 (770 sq mi); its habitat is highly fragmented; and there is ongoing and predicted degradation of its caves and forests.