Both household food insecurity and childhood overweight are serious public health problems that appear to be paradoxically correlated. This study examines the relationship between overweight and household food insecurity with/without hunger in low-income children participating in the Special Supplemental Nutrition Program for Women, Infants, and Children. Weight, height, and household food insecurity data were collected on 8,493 children ages 1 month to 5 years and analyzed by sex and age groups using logistic regression to model the odds of being overweight (weight for length or body mass index [calculated as kg/m2] for age ≥95th percentile) given household food insecurity status, controlling for race/ethnicity and maternal education.