Triboniophorus is a genus of air-breathing land slugs, terrestrial pulmonate gastropod molluscs in the family Athoracophoridae, the leaf-veined slugs.

Species within this genus include:[3] Triboniophorus brisbanensis Pfeiffer, 1900:[2] Synonym of Triboniophorus graeffei (anatomy at page 316.)

These slugs have two, not four, tentacles, and like other leaf-vein slugs they have an indented pattern on their dorsum which resembles the veins of a leaf.