We examined the association of maternal depression and anxiety symptoms with the weight status of children at preschool age. The current study is a cross-sectional study, which was carried out in the homes of the participants between July 2016 and August 2017. Maternal depression and anxiety symptoms were assessed using the Beck Depression Inventory-II and the Beck Anxiety Inventory, respectively. Of the 216 children included in the study, 69.4%, 21.3% and 9.3% were classified as [less than or equal to]85th, >85th and <97th and >85th percentile, respectively. The prevalence of moderate/severe maternal depression and anxiety symptoms was 20.1% and 19.5%, respectively. Children whose mothers had moderate/severe symptoms of depression and minimal/mild symptoms of anxiety were more likely to have excess body weight at preschool age than children whose mothers had both minimal/mild symptoms of depression and anxiety. We found that maternal depression symptoms are associated with excess body weight in children at preschool age.