Acanthopterygii (meaning "spiny finned one") is a superorder of bony fishes in the class Actinopterygii. Members of this superorder are sometimes called ray-finned fishes for the characteristic sharp, bony rays in their fins; however this name is often given to the class Actinopterygii as a whole.
- Order Mugiliformes, the mullets
- Order Atheriniformes, including silversides and rainbowfishes
- Order Beloniformes, including the flyingfishes
- Order Cetomimiformes, the whalefishes
- Order Cyprinodontiformes, including livebearers, killifishes
- Order Stephanoberyciformes, including the ridgeheads
- Order Beryciformes, including the fangtooths and pineconefishes
- Order Zeiformes, including the dories
- Order Gobiesociformes, the clingfishes
- Order Gasterosteiformes including the sticklebacks
- Order Syngnathiformes, including the seahorses and pipefishes 
- Order Synbranchiformes, including the swamp eels
- Order Tetraodontiformes, including the filefishes and pufferfishes
- Order Pleuronectiformes, the flatfishes
- Order Scorpaeniformes, including the scorpionfishes
- Order Perciformes 40% of all fishes including anabantids, basses, cichlids, gobies, gouramis, mackerels, perches, scats, whitings, wrasses
- In ITIS, Gobiesociformes is placed as the suborder Gobiesocoidei of the order Perciformes.
- In ITIS, Syngnathiformes is placed as the suborder Syngnathoidei of the order Gasterosteiformes.
- Thomas J. Near; et al. (2012). "Resolution of ray-finned fish phylogeny and timing of diversification". PNAS. pp. 13698–13703. doi:10.1073/pnas.1206625109.
- Betancur-Rodriguez; et al. (2016). "Phylogenetic Classification of Bony Fishes Version 4". Deepfin. Retrieved 30 December 2016.