The occurrence of fishes of families Diodontidae (porcupinefishes), Ostraciidae (boxfishes) and Molidae (oceanic sunfishes) belonging to order Tetraodoniformes is reviewed. A total of 12 species were reported of which 4 species belonging to 2 genera belonged to Family Diodontidae, 6 species belonging to 3 genera belonged to Family Ostraciidae and 2 species belonging to 2 genera belonged to Family Molidae. Two species Cyclichthys spilostylus (spotbase burrfish) and Ostracion rhinorhynchos (horn-nosed boxfish) are reported for the first time from Pakistan.