The effect of nonresidential father relationship characteristics on delinquency trajectories among low‐income youth (N = 799) was examined using data from the Three Cities Study, a longitudinal study of mothers and their children eligible for Temporary Assistance for Needy Families in Boston, Chicago, and San Antonio. Growth curve models were employed to track delinquency trajectories and their rate of growth. Characteristics of father–child relationships (anger–alienation, trust–communication) were specified as predictors of delinquency while controlling for father involvement and family structure. Trust–communication influenced delinquency growth, but the rate of growth slowed as youth aged. Implications for programs, interventions, and policy are explored.