Plectris glabripennis is a species of beetle of the family Scarabaeidae. It is found in Brazil (Santa Catarina).
Adults reach a length of about 15 mm. They are blackish-brown, moderately glossy, with the head, pronotum and elytra essentially smooth, with only a few bristly hairs at the front corners of the pronotum, as well as at the base and apical protuberances of the elytra.