Corporal punishment (CP) of children has many negative consequences, yet many parents still use CP to discipline their child. This study used an online questionnaire to determine the prevalence of CP among Flemish mothers, which specific physical disciplinary techniques (PDT) they consider CP and which PDT they use. In addition, the association of attitudes regarding CP, personal experiences with CP and cultural acceptance with the use of CP was examined. A total of 411 Flemish mothers with a child aged between 2 and 11 years participated in the study. About 38% of the mothers reported to use CP. In case of the use of PDT, they mostly used mild PDT. The results also show that there is a lack of consensus regarding the conceptualization of CP among Flemish mothers. Furthermore, positive attitudes towards the use of CP was a predictor of its use. Because the use of CP is associated with many negative consequences, it is important to set up prevention programmes to dissuade mothers form using of CP, to alter positive attitudes regarding CP and to raise awareness regarding the negative impact of CP on the development of children.