Corumictis is an extinct genus of mustelid from the Early Oligocene (Arikareean) of North America, specifically Oregon.

The specific name honors paleontologist Mieczysław Wolsan, who extensively studied the evolutionary history of fossil musteloids.

[3] The skull was originally believed to have belonged to an ancient feline, but was re-examined by palaeontologist Ryan Paterson of Carlton University in Canada, who concluded that it was a mustelid instead.

[2] Corumictis has very sharp teeth, and compared to modern mustelids it lacks an alisphenoid canal and a postprotocrista on its first molars.

It retains a dorsally deep suprameatal fossa, a feature occasionally considered unique to procyonids.