Pomacentridae represents a distinctive family of ray-finned fish, consisting of the commonly known damselfishes and clownfishes. Previously categorized under the order Perciformes, they are presently considered incertae sedis within the subseries Ovalentaria in the clade Percomorpha.
Most species within this family are found in marine environments, although a limited number can be found in freshwater and brackish habitats. Noteworthy for their resilient nature and territorial behavior, these fish have captivated attention due to their vibrant colorations, making them highly sought-after in the field of aquarium keeping.