O. nobilis

O. nobilis may refer to:
 * Oedemera nobilis, a beetle species found in Western Europe including the south of England
 * Ophisma nobilis, a moth species found in Costa Rica
 * Oreonympha nobilis, the bearded mountaineer, a hummingbird species found only in Peru
 * Orthonevra nobilis, a hoverfly species
 * Ostryopsis nobilis, a plant species found in China
 * Otidiphaps nobilis, the pheasant pigeon, a large terrestrial pigeon species found in the primary rainforests of New Guinea and nearby islands