B. spectabilis may refer to:
Barkeria spectabilis, an orchid species Bledius spectabilis, a beetle species Boerlagella spectabilis, a flowering plant species Bougainvillea spectabilis, a flowering plant species Bowenia spectabilis, a cycad species Brachychiton spectabilis, a tree species Buccochromis spectabilis, a fish species Bucculatrix spectabilis, a moth species Burchia spectabilis, a sea snail species