Euxoa ochrogaster, the red-backed cutworm, is a moth of the family Noctuidae.
It is found from Iceland and northern Europe, through the Baltic to the Amur region.
The larvae feed on a variety of broad leaf plants and grasses, including Plantago species.
The species is economically important on Helianthus annuus in North America.
The moths can be affected by a fungus Tarichium megaspermum (from order Entomophthorales), in British Columbia, Canada.