Porthidium lansbergii rozei, is a relatively understudied subspecies of Lansberg's hog-nosed pitvipers endemic to Venezuela. As with all pit vipers, P. l. rozei is venomous. This subspecies was named after Janis Arnolds Roze.
Porthidium lansbergii rozei is distinguished from its sister subspecies via its various scale morphologies and its dark blotches.