Arctia alpina is a moth of the family Erebidae. It is found in northern Scandinavia, northern Siberia, high mountains of southern Siberia and northern Mongolia; also in Alaska and northwestern Canada. Its wingspan is 42–50 mm. The larvae feed on Taraxacum officinale, Vaccinium and Salix herbacea. This species was formerly a member of the genus Acerbia, but was moved to Arctia along with the other species of the genera Acerbia, Pararctia, Parasemia, Platarctia, and Platyprepia.