Spesies baru
1. Spirosoma foliorum Ho, Nurcahyanto, et al. 2023
2. Begonia ranoposoensis Saleh, Bandjolu, & Ardi 2023
3. Begonia batusangiensis Ardi & D.C.Thomas 2023
4. Begonia labengkiensis Ardi & D.C.Thomas 2023
5. Begonia kabaenensis D.C.Thomas & Ardi 2023
6. Begonia stilpnophylla D.C.Thomas & Ardi 2023
7. Freycinetia wiharjae Keim, Witono & Sujarwo 2023
8. Bulbophyllum whitteniorum Saputra, Schuitemann, Metusala, & Heatubun 2023
9. Pectinaria nusalautensis Pamungkas & Hutchings 2023
10. Arthrostoma supriatnai Dewi, Purwaningsih & Hasegawa 2023
11. Tmethypocoelis simplex Murniati, Asakura & Davie 2023
12. Tmethypocoelis celebensis Murniati, Asakura & Davie 2023
13. Natunamon indonesicum Ng, Wowor, Yeo 2023
14. Isolapotamon remotum Ng, Wowor, Yeo 2023
15. Geosesarma Hashimi Ng, Wowor, Yeo 2023
16. Geosesarma anambas Ng, Wowor, Yeo 2023
17. Caridina clandestine Klotz, von Rintelen, Annawaty, Wowor & K. von Rintelen 2023
18. Gonocephalus inauris Harvey, Sarker, Sidik, Kurniawan, & Smith 2023
19. Cyrtodactylus gonjong Nugraha, Ahda, Tjong, Kurniawan, Riyanto, Fauzi & Lin 2023
20. Hypsiscopus indonesiensis Hamidy, Zakky, Fitriyana, Endarwin 2023
21. Oreophryne riyantoi Putri, Trilaksono, Kurniati, Engilis & Hamidy 2023
22. Litoria azuroscelis Günther, Richards, Hamidy, Trilaksono, Sulaeman & Oliver 2023
23. Limnonectes phyllofolia Frederick, Iskandar, Riyanto, Hamidy, et al. 2023
24. Hylophorbus monophonus Ferreira, Kraus, Richards, Oliver, Günther, Trilaksono, Arida, Hamidy, Riyanto, et al. 2023
25. Hylophorbus lengguru Ferreira, Kraus, Richards, Oliver, Günther, Trilaksono, Arida, Hamidy, Riyanto, et al. 2023
26. Hylophorbus maculatus Ferreira, Kraus, Richards, Oliver, Günther, Trilaksono, Arida, Hamidy, Riyanto, et al. 2023
27. Oryzias loxolepis Kobayashi, Mokodongan, et al. 2023
28. Phenacostethus sikat Parenti, Lumbantobing, & Haryono 2023
29. Palaina motiensis Heryanto, Mujiono, Laitupa, & Nurinsiyah 2023
30. Sulawesidrobia wilsoni Haase, Rintelen, Harting, Marwoto & Glaubrecht 2023
31. Sulawesidrobia carsonae Haase, Rintelen, Harting, Marwoto & Glaubrecht 2023
32. Sulawesidrobia ehrlichi Haase, Rintelen, Harting, Marwoto & Glaubrecht 2023
33. Sulawesidrobia crutzeni Haase, Rintelen, Harting, Marwoto & Glaubrecht 2023
34. Sulawesidrobia dinersteini Haase, Rintelen, Harting, Marwoto & Glaubrecht 2023
35. Agrioglypta hastantiae Sutrisno 2023
36. Agrioglypta ubaidillahi Sutrisno 2023
37. Agrioglypta halimunensis Sutrisno 2023
38. Colocasiomyia pinangae Zhang, Gao, Takano, Yafuso, Suwito, Meleng, Toda 2023
39. Colocasiomyia besaris Zhang, Gao, Takano, Yafuso, Suwito, Meleng, Toda 2023
40. Colocasiomyia luciphila Zhang, Gao, Takano, Yafuso, Suwito, Meleng, Toda 2023
41. Colocasiomyia oligochaeta Zhang, Gao, Takano, Yafuso, Suwito, Meleng, Toda 2023
42. Colocasiomyia grimaldii Zhang, Gao, Takano, Yafuso, Suwito, Meleng, Toda 2023
43. Rattus feileri Fabre, Miguez, Holden, Fitriana, Semiadi, Musser, Helgen 2023
44. Rattus taliabuensis Fabre, Miguez, Holden, Fitriana, Semiadi, Musser, Helgen 2023
45. Rattus halmaheraensis Fabre, Miguez, Holden, Fitriana, Semiadi, Musser, Helgen 2023
46. Rattus obiensis Fabre, Miguez, Holden, Fitriana, Semiadi, Musser, Helgen 2023
Subspesies baru
47. Gonocephalus doriae brevis Harvey, Sarker, Sidik, Kurniawan, & Smith 2023
48. Taraka hamada hamakoae Suefuji, Saito, & Peggie 2023
(Dani Jumadil Akhir)