Purpose.-We examined the correlates and health implications of household food insecurity among Hispanic/Latino youth (ages 8-16), a high food insecurity-risk population. Methods.-Using the Hispanic Community Children's Health/Study of Latino Youth (n=1,362) and bivariate and multivariate analyses, we examined the correlates of household and child food insecurity and very low food security. We assessed the influence of four sets of risk/protective factors-child demographic, acculturation, socioeconomic , and family/social support. We then examined associations between food insecurity and four health indicators-BMI, diet quality, depression, and anxiety-and used modification effects to assess whether these associations differed by sex, age, household income, parent nativity, and acculturative stress levels. Results.-We found high rates of food insecurity: 42% of Hispanic/Latino youth experienced household food insecurity and 33% child food insecurity. Moreover, 10% lived in a very low food secure household. Compared to their food secure peers, Hispanic/Latino youth in food insecure households experienced greater parent/child acculturative and economic stress, and weakened family support systems. Associations of food insecurity with health outcomes varied by sex, age, household income, parent nativity, and child acculturative stress levels.