P. orientalis may refer to: * Paradelma orientalis, the Brigalow scaly-foot or Queensland snake-lizard, a lizard species endemic to Australia * Phalanger orientalis, the northern common cuscus, a marsupial species native to northern New Guinea * Phylloscopus orientalis, the Eastern Bonelli's warbler, a bird species * Picea orientalis, the Caucasian spruce or Oriental spruce, a tree species native to the Caucasus and adjacent northeast Turkey * Platanus orientalis, the Oriental plane, a large deciduous tree species native from the Balkans to as far east as at least Iran * Platycladus orientalis, an evergreen coniferous tree species native to northwestern China * Platysaurus orientalis, the Sekukhune flat lizard, a reptile species found in Africa * Plectorhinchus orientalis, a grunt