Junonia grisea, also known as the gray buckeye, grey buckeye, or Western buckeye, is a species in the butterfly family Nymphalidae.

It is found in North America, west of the Rocky Mountains.

Like the common buckeye, the gray buckeye is a brown butterfly with eyespots on its wings that distract predators from its body.

[1] Junonia grisea was formerly considered a subspecies of the common buckeye, Junonia coenia, called Junonia coenia grisea.

The gray buckeye's status as a separate species was discovered in 2018 by Dr. Jeffrey Marcus, an entomologist at the University of Manitoba, and Melanie Lalonde, a graduate student.