Ochotonidae is a family of small mammals in the order Lagomorpha.
A member of this family is called an ochotonid or, colloquially, a pika.
They are widespread throughout Asia and western North America, and are generally found in grassland, shrubland, and rocky biomes.
Many extinct Ochotonidae species have been discovered, though due to ongoing research and discoveries the exact number and categorization is not fixed.
[1] Conservation status codes listed follow the International Union for Conservation of Nature (IUCN) Red List of Threatened Species.
Ranges are based on the IUCN Red List for that species unless otherwise noted.
All extinct species or subspecies listed alongside extant species went extinct after 1500 CE, and are indicated by a dagger symbol "†".
The following classification is based on the taxonomy described by Mammal Species of the World (2005), with augmentation by generally accepted proposals made since using molecular phylogenetic analysis, as supported by both the IUCN and the American Society of Mammalogists.