The purpose of this study was to examine whether gender would moderate the association between teacher--child relationship and children's social skills in a sample of preschool children. Classroom teachers (N = 32) rated the quality of the teacher--child relationship (Student--Teacher Relationship Scale; STRS) and children's social skills (Social Skills Rating System; SSRS) in a sample of 160 preschool children in Oman. Children's ages ranged from 46 to 70 months with an average of 58 months (SD = 6 months). The hierarchical multiple linear regression analysis showed that the subscales (STRS) and the total score explained 21% of the variance in social skills. Gender was also a significant predictor of children's social skills. Females' close relationship with teachers predicted social skills better than males. Positive correlations were found between teacher--child conflict and both internalizing and externalizing behaviours, and between closeness and SSRS cooperation and self-control. Teacher--child dependence correlated negatively with both cooperation and SSRS total score. An independent-samples t-test showed that girls displayed higher scores than males in SSRS cooperation assertion, SSRS total score, and STRS closeness. Results inform policy-makers and practitioners about the gender disparity issue and the importance of developing positive and healthy teacher--child relationships in preschool.