Pliorhinus is an extinct genus of rhinoceros known from the Late Miocene and Pliocene of Eurasia.

Species of Pliorhinus are large sized two horned rhinoceroses,[1] with some individuals of P. megarhinus suggested to have a body mass of around 3,000 kilograms (6,600 lb).

[2] Their skulls have a nasal notch located above the molars, and are distinguished from other rhinoceroses by various characters of the teeth.

[1] Species of Pliorhinus are suggested to be closely related and possibly ancestral to Stephanorhinus.

Morphological phylogeny after Pandolfi (2023), excluding living African rhinoceros species.