The present meta-analysis integrates the results of studies on associations of parenting styles with moral reasoning. The systematic search in electronic databases identified 23 studies that were included in this random-effects meta-analysis. We found a statistically significant, but small positive, concurrent association of authoritative parenting with higher moral reasoning, while the reverse was found for authoritarian parenting. No significant associations were found for permissive parenting, and numbers of studies were too small for identifying significant associations of neglectful parenting with moral reasoning, as well as cross-lagged effects of parenting styles on longitudinal change in moral reasoning. The size of the associations varied, in part, by publication status, educational status, and quality of assessing moral reasoning. Implications for future research and practice are discussed.