This list of fishes of Ukraine consists of indigenous and introduced species.
These tags are used to evaluate the conservation status of species by criteria of IUCN: EX Extinct CR Critically endangered EN Endangered VU Vulnerable NT Near threatened LC Least concern DD Data deficient NE Not evaluated
All the listed species are classified by their origin as freshwater, brackishwater, marine, anadromous, catadromous, and euryhaline; also classified as native, introduced, invasive, and species with accidental finding (difficult to characterize it as native or invasive).