Beauchampius is a genus of land planarians in the tribe Pelmatoplaninini.

The genus Beauchampius includes planarians with weak cutaneous longitudinal musculature and strong parenchymal musculature forming a ring zone.

The copulatory apparatus has a well-developed conical penis papilla and two female ducts opening into the genital atrium, one from the ventral female canal and other from the dorsal diverticulum that in some cases forms a seminal bursa.

[1] The genus Beauchampius was named in honor of Paul Marais de Beauchamp, who studied land planarians for more than 60 years.

The genus Beauchampius includes the following species: