L. portoricensis may refer to:
Laetilia portoricensis, a snout moth Laudetia portoricensis, an eight-eyed spider Leptosphaeria portoricensis, a fungus with pseudoparaphyses Linsleyonides portoricensis, a longhorn beetle Liophis portoricensis, a water snake Loxigilla portoricensis, a bullfinch tanager Lyssomanes portoricensis, a jumping spider