P. gigantea

P. gigantea may refer to:
 * Pachyaena gigantea, an extinct mammal species in the genus Pachyaena
 * Panthea gigantea, a moth species found in western North America
 * Petalura gigantea, the giant dragonfly or south-eastern petaltail, one of the world's largest dragonflies
 * Phalaenopsis gigantea, an orchid species endemic to Borneo
 * Pinguicula gigantea, a tropical carnivorous plant species native to Mexico
 * Pleuroploca gigantea (= Triplofusus papillosus), the Florida horse conch, a species of extremely large predatory subtropical and tropical sea snail
 * Pouteria gigantea, a plant species endemic to Ecuador
 * Pseudaneitea gigantea, an air-breathing land slug species
 * Pseudibis gigantea, the giant ibis, a bird species
 * Pseudoeurycea gigantea, a salamander species endemic to Mexico