Attachment relationships of first, third, and fifth graders with their mothers and fathers, and their associations with self-perceived and teacher-rated competence, were investigated. Children rated their attachment security with mothers and fathers using the Kerns security scale. Children's perceptions of academic and peer competence were measured using Harter's self-perception profile, and teachers also rated children's competence. Girls felt greater attachment security to their mothers than to their fathers, and boys felt greater attachment security to their fathers than did girls. Greater attachment security with both mothers and fathers was associated with children's perceptions of greater peer and academic competence, and this association was stronger for older children. A greater sense of attachment security with both parents was associated with greater competence than a sense of attachment security with only one parent. Teacher-rated competence was significantly related to attachment security with mothers but not fathers.