For the Natura 2000 net realisation in Romania, the implementation of specific management plans should cover one by one, all the designated sites with all the species and habitats of conservative interest. For this purpose this paper want to bring concentrated data (scientific and vernacular names, terra typica, description, image, ecology, biology, distribution, conservation, threats, etc.) regarding the fish species (Osteichthyes) included in the Habitats Directive (92/43/EEC) and being present on the Romanian territorry: Alosa pontica, A. tanaica, Aspius aspius; Barbus meridionalis, Cobitis elongata, C. taenia, Cottus gobio, Gobio albipinnatus, G. kessler, G. uranoscopus, Gymnocephalus schraetzer, G. baloni, Hucho hucho, Leuciscus souffia, Misgurnus fossilis, Pelecus cultratus, Proterorhinus marmoratus, Rhodeus sericeus amarus, Romanichthys valsanicola, Rutilus pigus, Sabanejewia aurata, Umbra krameri, Zingel streber and Z. zingel.