Pterodiscus

Pterodiscus may refer to:
 * Pterodiscus (plant), a genus of plants in the family Pedaliaceae
 * Pterodiscus, a genus of fishes in the family Gasteropelecidae, synonym of Gasteropelecus
 * Pterodiscus, a genus of gastropods in the family Amastridae, synonym of Tropidoptera