B. orientalis may refer to:
Bagrus orientalis, a fish species found in Malawi and Tanzania Bangasternus orientalis, the yellow starthistle bud weevil, a beetle species native to southern Europe and the Mediterranean Batis orientalis, the grey-headed batis, a bird species found in Africa Berlinia orientalis, a legume species found in Mozambique and Tanzania Blatta orientalis, the oriental cockroach or waterbug, a large cockroach species Bolbena orientalis, a praying mantis species Bombina orientalis, the Oriental fire-bellied toad, a small semi-aquatic toad species found in Korea, north-eastern China and adjacent parts of Russia Braula orientalis, a bee lice fly species in the genus Braula Brunnera orientalis, a plant species in the genus Brunnera Bunias orientalis, a plant species
See also Orientalis (disambiguation)