The sunflower moth, Homoeosoma electellum (Hulst), is a major pest of sunflower (Helianthus annuus L.) mainly in the central and southern United States. The sunflower moth is most commonly controlled with pesticides. Resistant plants would provide an environmentally friendly approach to controlling this pest. Evaluation of 680 cultivated sunflower accessions in the U.S. National Plant Germplasm System's sunflower (Helianthus spp.) collection at the North Central Regional Plant Introduction Station, Ames, IA, USA. revealed 51 accessions resistant to sunflower moth feeding. A 1-3-5-7-9 rating scale is presented to compare accessions damaged by the pest. The proceeding evaluation data were entered into the Germplasm Resources Information Network (GRIN) and made available to researchers worldwide.