Rhinolophidae is a family of bats commonly known as horseshoe bats. There is also an extinct genus of bats, Palaeonycteris. Horseshoe bats are closely related to the Hipposideridae. Horseshoe bats are divided into six subgenera and many species groups. The common ancestor of all horseshoe bats lived 34–40 million years ago. Horseshoe bats are found mostly in tropical or subtropical areas, including Africa, Asia, Europe, and Oceania.
Horseshoe bats are a source of disease. Several species are the source of SARS coronavirus. Some evidence suggests that some species could be the source of SARS-CoV-2, which causes coronavirus disease 2019. The bats are hunted for food in several regions, particularly Sub-Saharan Africa, but also Southeast Asia. Some species or their guano are used in traditional medicine in Nepal, India, Vietnam, and Senegal.