The purpose of this meta-analysis is to explore relations between children’s perceptions of parental hostility/aggression, and their psychological maladjustment, and negative personality dispositions as postulated in interpersonal acceptance and rejection theory. The meta-analysis was based on 35 studies from 16 countries in four continents involving 13,406 children (52% boys and 48% girls). All studies included in the meta-analysis, used child versions of the Parental Acceptance-Rejection Questionnaire for Mothers and for Fathers (Child PARQ: Mothers and Fathers), as well as the child version of the Personality Assessment Questionnaire (Child PAQ). Results showed that both maternal and paternal hostility/aggression correlated significantly with the psychological maladjustment and with all seven negative personality dispositions, including (1) hostility/aggression, (2) dependence or defensive independence, (3) negative self-esteem, (4) negative self-adequacy, (5) emotional instability, (6) emotional unresponsiveness, and (7) negative worldview of children across ethnicities, cultures, and geographical boundaries. Results further revealed that perceived maternal than paternal hostility/aggression has significantly stronger relations with children’s psychological maladjustment globally.