n = 43
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Oryzias andrewi | Roberts, Chakraborty, Yardi & Mukherjee, 2021 | Genus Species | New species | |
| Oryzias asinua | Parenti, Hadiaty, Lumbantobing & Herder, 2013 | Oryzias asinua | Adrianichthyidae | |
| Oryzias bonneorum | Parenti, 2008 | Oryzias bonneorum | Adrianichthyidae | |
| Oryzias carnaticus | (Jerdon, 1849) | Oryzias carnaticus | Adrianichthyidae | Spotted ricefish |
| Oryzias celebensis | (Weber, 1894) | Oryzias celebensis | Adrianichthyidae | Celebes medaka |
| Oryzias celebesensis | (Weber, 1894) | Oryzias celebensis | Adrianichthyidae | Celebes medaka |
| Oryzias curvinotus | (Nichols & Pope, 1927) | Oryzias curvinotus | Adrianichthyidae | |
| Oryzias dancena | (Hamilton, 1822) | Oryzias dancena | Adrianichthyidae | Indian blue ricefish |
| Oryzias dopingdopingensis | Mandagi, Mokodongan, Tanaka & Yamahira, 2018 | Genus Species | New species | |
| Oryzias eversi | Herder, Hadiaty & Nolte, 2012 | Oryzias eversi | Adrianichthyidae | |
| Oryzias hadiatyae | Herder & Chapuis, 2010 | Oryzias hadiatyae | Adrianichthyidae | |
| Oryzias haugiangensis | Roberts, 1998 | Oryzias haugiangensis | Adrianichthyidae | |
| Oryzias hubbsi | Roberts, 1998 | Oryzias hubbsi | Adrianichthyidae | |
| Oryzias javanicus | (Bleeker, 1854) | Oryzias javanicus | Adrianichthyidae | Javanese ricefish |
| Oryzias kalimpaaensis | Gani, Suhendra, Herder, Schwarzer, Möhring, Montenegro, Herjayanto & Mokodongan, 2022 | Oryzias kalimpaaensis | Adrianichthyidae | Lake Kalimpa’a ricefish |
| Oryzias latipes | (Temminck & Schlegel, 1846) | Oryzias latipes | Adrianichthyidae | Japanese rice fish |
| Oryzias latipes latipes | (Temminck & Schlegel, 1846) | Oryzias latipes | Adrianichthyidae | Japanese rice fish |
| Oryzias latipes sinensis | Chen, Uwa & Chu, 1989 | Oryzias sinensis | Adrianichthyidae | |
| Oryzias luzonensis | (Herre & Ablan, 1934) | Oryzias luzonensis | Adrianichthyidae | |
| Oryzias madagascariensis | Arnoult, 1963 | Pantanodon madagascariensis | Pantanodontidae | |
| Oryzias marmoratus | (Aurich, 1935) | Oryzias marmoratus | Adrianichthyidae | Marmorated medaka |
| Oryzias matanensis | (Aurich, 1935) | Oryzias matanensis | Adrianichthyidae | Matano medaka |
| Oryzias mekongensis | Uwa & Magtoon, 1986 | Oryzias mekongensis | Adrianichthyidae | |
| Oryzias melanostigma | (McClelland, 1839) | Oryzias melastigma | Adrianichthyidae | |
| Oryzias melastigma | (McClelland, 1839) | Oryzias melastigma | Adrianichthyidae | |
| Oryzias melastigmus | (McClelland, 1839) | Oryzias melastigma | Adrianichthyidae | |
| Oryzias minutillus | Smith, 1945 | Oryzias minutillus | Adrianichthyidae | Dwarf medaka |
| Oryzias minutilus | Smith, 1945 | Oryzias minutillus | Adrianichthyidae | Dwarf medaka |
| Oryzias nebulosus | Parenti & Soeroto, 2004 | Oryzias nebulosus | Adrianichthyidae | |
| Oryzias nigrimas | Kottelat, 1990 | Oryzias nigrimas | Adrianichthyidae | Black buntingi |
| Oryzias orthognathus | Kottelat, 1990 | Oryzias orthognathus | Adrianichthyidae | Sharpjawed buntingi |
| Oryzias pectoralis | Roberts, 1998 | Oryzias pectoralis | Adrianichthyidae | |
| Oryzias profundicola | Kottelat, 1990 | Oryzias profundicola | Adrianichthyidae | Yellow finned medaka |
| Oryzias sakaizumii | Asai, Senou & Hosoya, 2012 | Oryzias sakaizumii | Adrianichthyidae | Northern medaka |
| Oryzias sarasinorum | (Popta, 1905) | Oryzias sarasinorum | Adrianichthyidae | Sarasins minnow |
| Oryzias setnai | (Kulkarni, 1940) | Oryzias setnai | Adrianichthyidae | Malabar ricefish |
| Oryzias sinensis | Chen, Uwa & Chu, 1989 | Oryzias sinensis | Adrianichthyidae | |
| Oryzias soerotoi | Mokodongan, Tanaka & Yamahira, 2014 | Oryzias soerotoi | Adrianichthyidae | |
| Oryzias songkhramensis | Magtoon, 2010 | Oryzias songkhramensis | Adrianichthyidae | |
| Oryzias timorensis | (Weber & de Beaufort, 1922) | Oryzias timorensis | Adrianichthyidae | |
| Oryzias uwai | Roberts, 1998 | Oryzias uwai | Adrianichthyidae | |
| Oryzias wolasi | Parenti, Hadiaty, Lumbantobing & Herder, 2013 | Oryzias wolasi | Adrianichthyidae | |
| Oryzias woworae | Parenti & Hadiaty, 2010 | Oryzias woworae | Adrianichthyidae |