Graphorn (two-horned shield bug) is a genus of shield bug found in Argentina.

As of 2022, it is monospecific, just consisting of G. bicallosus (a senior synonym of the type species G.

[2] The genus is named after the graphorn, a magical creature from the Harry Potter series.

[1] It is found in Argentina,[1] and Paraguay.

This Pentatomoidea article is a stub.