L. exigua may refer to:
Laemodonta exigua, an air-breathing snail Leavenworthia exigua, a flowering plant Lebia exigua, a ground beetle Lecanactis exigua, a lichenized fungus Lepanthes exigua, a flowering plant Leptanilla exigua, a North African ant Leptogorgia exigua, a Pacific coral Lissotesta exigua, a sea snail Lomanella exigua, a daddy longlegs Lycosa exigua, a wolf spider