Ethmia monticola, the gray ethmia moth, is a moth in the family Depressariidae. It is found in North America from British Columbia and Alberta to California and Arizona, east at least to North Dakota and Colorado.

The length of the forewings is 10.8–15.3 mm (0.43–0.60 in). The ground color of the forewings is pale to dark slate gray. The markings are black, conspicuous and variable. The ground color of the hindwings is pale to dark gray. Adults are on wing from May to July.

The larvae of subspecies fuscipedella feed on Lithospermum canescens and Lithospermum gmelini. They live in a slight web.

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