Little published research explores the perceptions of school nutrition professionals and youth regarding existing school nutrition marketing materials. A two-phased approach was taken to address this gap. In Phase 1, a national convenience sample of US school nutrition professionals (n= 1546; 89% female; 83.3% white; mean age 50 ± 10.2 years) evaluated a sample of marketing materials via a web-based survey. Phase 2 involved a sample of youth (n= 61; 51% female, 52.5% Hispanic; 98% participation in free/reduced price lunch) living in the Phoenix, Arizona metro area who completed interviews on the top-rated materials from the school nutrition professionals (Phase 1). Main outcome measures included perceived attractiveness/appeal, comprehension, relevance, motivation/persuasion, and uniqueness of marketing materials. In Phase 1, means/standard deviations of school nutrition professionals’ perceptions across materials are provided. For Phase 2, a thematic/subtheme analysis of the youth interviews is provided. School nutrition professionals found the materials easy to understand (82%); however, they rated the materials low in motivational appeal (48%) and low in their ability to influence the selection or consumption of fruits/vegetables (95%). Youth participants discussed their likes, dislikes, comprehension, social aspects, and health aspects of the materials. Results indicate that existing marketing materials were not highly rated by professionals or youth. Greater investment and research are needed to test and develop nutrition marketing materials for schools, with a focus on enhancing their appeal and impact on fruit/vegetable consumption.