Sciurinae

 ( Mammal Subfamilies ) 

Sciurinae () is a subfamily of (in the family Sciuridae), uniting the with certain related tree squirrels. Older sources place the flying squirrels in a separate subfamily (Pteromyinae) and unite all remaining sciurids into the subfamily Sciurinae, but this has been strongly refuted by genetic studies.Steppan, S. J. B. L. Storz, and R. S. Hoffmann. 2004. "Nuclear DNA phylogeny of the squirrels (Mammalia: Rodentia) and the evolution of arboreality from c-myc and RAG1". Molecular Phylogenetics and Evolution, 30:703–719.

• Tribe Sciurini
• Genus Microsciurus – American dwarf squirrels
• Central American dwarf squirrel, M. alfari
• Amazon dwarf squirrel, M. flaviventer
• Western dwarf squirrel, M. mimulus
• Santander dwarf squirrel, M. santanderensis
• Genus Rheithrosciurus
• Tufted ground squirrel, R. macrotis
• Genus Sciurus
• Subgenus Sciurus
• Allen's squirrel, S. alleni
• Arizona gray squirrel, S. arizonensis
• Mexican gray squirrel, S. aureogaster
• Eastern gray squirrel, S. carolinensis
• Collie's squirrel, S. colliaei
• Deppe's squirrel, S. deppei
• Japanese squirrel, S. lis
• Calabrian black squirrel, S. meridionalis
• Mexican fox squirrel, S. nayaritensis
• Fox squirrel, S. niger
• Peters's squirrel, S. oculatus
• Variegated squirrel, S. variegatoides
• Red squirrel, S. vulgaris
• Yucatan squirrel, S. yucatanensis
• Subgenus Otosciurus
• Abert's squirrel, S. aberti
• Subgenus Guerlinguetus
• Brazilian squirrel or Guianan squirrel, S. aestuans
• Yellow-throated squirrel, S. gilvigularis
• Red-tailed squirrel, S. granatensis
• Bolivian squirrel, S. ignitus
• Andean squirrel, S. pucheranii
• Richmond's squirrel, S. richmondi
• Sanborn's squirrel, S. sanborni
• Guayaquil squirrel, S. stramineus
• Subgenus Tenes
• Persian squirrel, S. anomalus
• Subgenus Hadrosciurus
• Fiery squirrel, S. flammifer
• Junín red squirrel, S. pyrrhinus
• Subgenus Hesperosciurus
• Western gray squirrel, S. griseus
• Subgenus Urosciurus
• Northern Amazon red squirrel, S. igniventris
• Southern Amazon red squirrel, S. spadiceus
• Genus Syntheosciurus
• Bangs's mountain squirrel, S. brochus
• Genus Pine squirrel - pine squirrels
• Douglas squirrel, T. douglasii
• Southwestern red squirrel T. fremonti
• American red squirrel, T. hudsonicus
• Mearns's squirrel, T. mearnsi
• Tribe Pteromyini – flying squirrels
• Subtribe Glaucomyina
• Genus Eoglaucomys
• Kashmir flying squirrel, E. fimbriatus
• Genus Glaucomys – New World flying squirrels
• Southern flying squirrel, G. volans
• Northern flying squirrel, G. sabrinus
• Humboldt's flying squirrel, G. oregonensis
• Genus Hylopetes
• Particolored flying squirrel, H. alboniger
• Afghan flying squirrel, H. baberi
• Bartel's flying squirrel, H. bartelsi
• Gray-cheeked flying squirrel, H. lepidus
• Palawan flying squirrel, H. nigripes
• Indochinese flying squirrel, H. phayrei
• Jentink's flying squirrel, H. platyurus
• Sipora flying squirrel, H. sipora
• Red-cheeked flying squirrel, H. spadiceus
• Sumatran flying squirrel, H. winstoni
• Genus Iomys
• Javanese flying squirrel, I. horsfieldi
• Mentawi flying squirrel, I. sipora
• Genus Petaurillus – pygmy flying squirrels
• Lesser pygmy flying squirrel, P. emiliae
• Hose's pygmy flying squirrel, P. hosei
• Selangor pygmy flying squirrel, P. kinlochii
• Genus Petinomys
• Basilan flying squirrel, P. crinitus
• Travancore flying squirrel, P. fuscocapillus
• Whiskered flying squirrel, P. genibarbis
• Hagen's flying squirrel, P. hageni
• Siberut flying squirrel, P. lugens
• Mindanao flying squirrel, P. mindanensis
• Arrow flying squirrel, P. sagitta
• Temminck's flying squirrel, P. setosus
• Vordermann's flying squirrel, P. vordermanni
• Subtribe Pteromyina
• Genus Aeretes
• Groove-toothed flying squirrel, A. melanopterus
• Genus Aeromys – large black flying squirrels
• Black flying squirrel, A. tephromelas
• Thomas's flying squirrel, A. thomasi
• Genus Belomys
• Hairy-footed flying squirrel, B. pearsonii
• Genus Biswamoyopterus
• Namdapha flying squirrel, B. biswasi
• Laotian giant flying squirrel, B. laoensis
• Mount Gaoligong flying squirrel, B. gaoligongensis
• Genus Eupetaurus
• Western woolly flying squirrel, Eupetaurus cinereus
• Yunnan woolly flying squirrel, Eupetaurus nivamons
• Tibetan woolly flying squirrel, Eupetaurus tibetensis
• Genus Petaurista
• Red and white giant flying squirrel, P. alborufus
• Spotted giant flying squirrel, P. elegans
• Hodgson's giant flying squirrel, P. magnificus
• Bhutan giant flying squirrel, P. nobilis
• Indian giant flying squirrel, P. philippensis
• Chinese giant flying squirrel, P. xanthotis
• Japanese giant flying squirrel, P. leucogenys
• Red giant flying squirrel, P. petaurista
• Genus Pteromys – Old World flying squirrel
• Siberian flying squirrel, P. volans
• Japanese dwarf flying squirrel, P. momonga
• Genus Pteromyscus
• Smoky flying squirrel, P. pulverulentus
• Genus Trogopterus
• Complex-toothed flying squirrel, T. xanthipes