Menurut International Union for Conservation of Nature (IUCN), kelelawar di dalam skala internasional, yang mempergunakan bahasa Inggris sebagai pengantar umum, memiliki sejumlah sebutan, antara lain (namun tidak terbatas pada) bat, pipistrelle, dan noctule.
Di bawah ini terangkum nama internasional (bahasa Inggris) dan nama ilmiah (bahasa Latin; binomial) spesies kelelawar sesuai dengan data yang tercantum di dalam IUCN Red List yang saya akses pada tanggal 13 April 2019.
Spesies kelelawar dengan sebutan bat:
1. Gould's wattled bat (Chalinolobus gouldi)
2. Pallid bat (Antrozorus pallidus)
3. Large-eared pied bat (Chalinolobus dweyri)
4. Chocolate wattled bat (Chalinolobus morio)
5. Indiana bat (Myotis sodalis)
6. Particoloured bat (Vespertilio murinus)
7. Egyptian fruit bat (Rousettus aegyptiacus)
8. Natterer's bat (Myotis natterei)
9. Mountain long-eared bat (Plecotus macrobullaris)
10. Gray big-eared bat (Plecotus austriacus)
11. Geoffroy's bat (Myotis emarginatus)
12. Brown big-eared bat (Plecotus auritus)
13. Wrinkle-faced bat (Centurio senex)
14. Seba's short-tailed bat (Carollia perspicllata)
15. Antillean fruit-eating bat (Brachyphlla cavernarum)
16. Gervais's fruit-eating bat (Dermanura cinerera)
17. Thomass's fruit-eating bat (Dermanura watson)
18. Toltec fruit-eating bat (Dermanura tolteca)
19. Silky short-tailed bat (Carollia brevicauda)
20. Lesser long-tailed bat (Choeroniscus minor)
21. Dark fruit-eating bat (Artbeus obscurus)
22. Greater horseshoe bat (Rhinolophus ferrumequinum)
23. Lesser horseshoe bat (Rhinolophus hipposideros)
24. Little forest bat (Vespadelus vulturnus)
25. Little broad-nosed bat (Scotorepens greyii)
26. Schlieffen's bat (Nycticeinops schlieffeni)
27. Eastern sucker-footed bat (Myzopoda aurita)
28. Whitehead's wolly bat (Kerivoula whiteheadi)
29. Allen's yellow bat (Baeodon alleni)
30. Silver-haired bat (Lasionycteris noctivagans)
31. Slender yellow bat (Baeodon gracilis)
32. Finlayson's cave bat (Vespadelus darlington)
33. Large forest bat (Vespadelus caurinus)
34. Southern forest bat (Vespadelus regulus)
35. Northern broad-nosed bat (Scotorepens sanborni)
36. Eastern broad-nosed bat (Scotorepens orion)
37. Eastern forest bat (Vespadelus pumilus)
38. Inland forest bat (Vespadelus baverstocki)
39. Harlequin bat (Scotomanes ornatus)
40. Papillose wolly bat (Kerivoula papillosa)
41. Kachin wolly bat (Kervoula kachinensis)
42. Golden-tipped bat (Phoniscus papuenss)
43. Lenis wolly bat (Kervoula lenis)
44. White-bellied yellow bat (Scotophilus leucogaster)
45. Southern yellow bat (Lasiurus ega)
46. Titana's wolly bat (Kerivoula titania)
46. Eastern cave bat (Vespadelus troughtoni)
47. Pygmy long-eared bat (Nyctophilus walkeri)
48. Blandford's fruit bat (Sphaerias blanford)
49. Great evening bat (Ia io)
50. Disk-footed bat (Eudiscopus denticulus)
51. Big brown bat (Eptesicus fuscus)
52. Thick-eared bat (Eptescus pachyotis)
53. Inland broad-nosed bat (Scotorepens balstoni)
Spesies kelelawar dengan sebutan pipistrelle:
1. Christmas Island pipistrelle (Pipistrellus murrayi)
2. Nathusius' pipistrelle (Pipistrellus nathusii)
3. Common pipistrelle (Pipistrellus pipistrellus)
4. Soprano pipistrelle (Pipistrellus pygmaeus)
5. Savi's pipistrelle (Hypsugo savii)
6. Western pipistrelle (Parastellus hesperus)
7. Eastern false pipistrelle (Falsitrellus tasmaniensis)
8. Northern pipistrelle (Pipistrellus westralis)
9. New Guinea pipistrelle (Pipistrellus angulatus)
10. Mountain pipistrelle (Pipistrellus collinus)
11. Mount Popa pipistrelle (Pipistrellus paterculus)
12. Brown pipistrelle (Pipistrellus imbricatus)
13. Javan pipistrelle (Pipistrellus javanicus)
14. Chinese pipistrelle (Pipistrellus pulveratus)
15. Dark Madagascar pipistrelle (Hypsugo bemainty)
16. Narrow-winged pipistrelle (Pipistrellus stenopterus)
17. Chocolate pipistrelle (Falsistrellus affnis)
Spesies kelelawar dengan sebutan myotis:
1. Daubenton's myotis (Myotis daubentonii)
2. Brand'ts myotis (Myotis brandtii)
3. Lesser mouse-eared myotis (Myotis blythi)
3. Greater mouse-eared myotis (Myotis myotis)
4. Whiskered myotis (Myotis mystacinus)
5. Taiwan broad-muzzled myotis (Submyotodon latirostris)
Spesies kelelawar dengan sebutan noctule/barbastelle/flying fox/serotine/sprite/rousette:
1. Giant noctule (Nyctalus iasiopterus)
2. Rennell flying fox (Pteropus rennelli)
3. Noctule (Nyctalus noctula)
4. Lesser noctule (Nyctalus leisleri)
5. Madagascan rousette (Rousettus madagascariensis)
6. Western barbastelle (Barbastella barbastellus)
7. Pemba flying fox (Pteropus voeltzkowi)
8. Diminutive serotine (Eptesicus diminutus)
9. Chiriquinan serotine (Eptesicus chiriquinus)
10. Necklace sprite (Arielulus torquatus)
Berdasarkan daftar di atas, sekurang-kurangnya terdapat 85 spesies hewan kelelawar yang masuk ke dalam IUCN Red List (Daftar Merah IUCN). Artinya, bahwa spesies-spesies tersebut tergolong sebagai fauna yang dilindungi. Usaha mempertahankan keberadaan mereka sangat penting untuk menciptakan keseimbangan ekologi.