* Kingdom: Animalia (Animals)
* Phylum: Chordata (Chordates)
* Class: Actinopterygii (Ray-finned fishes)
* Order: Tetraodontiformes (Tetraodontiforms)
* Family: Tetraodontidae (Pufferfishes)
* Genus: Varies depending on the specific species (e.g., *Tetraodon*, *Lagocephalus*, *Sphoeroides*)
* Species: Varies depending on the specific type of pufferfish (e.g., *Tetraodon lineatus* (Green pufferfish), *Lagocephalus laevigatus* (Smooth pufferfish), *Sphoeroides maculatus* (Spotted pufferfish))
There are over 120 species of pufferfish, and the specific genus and species will determine the exact classification.