Background A vast literature has demonstrated that several mother-related variables are positively associated with their daughters’ sexual and reproductive outcomes. One underexplored variable is sexual empowerment––a subdimension of empowerment. In this study, we explore if maternal sexual empowerment is predictive of adolescent daughters’ outcomes like early sexual initiation, teenage pregnancy, and contraception use. Methods This study uses data from the 2018 National Health and Nutrition Survey of Ecuador (Ensanut), a cross-sectional survey in Ecuador that measures health and nutrition. We examine whether mothers’ sexual empowerment––measured as a woman’s autonomy in sexual relationships and her ability to turn down sex and demand contraception use from her partner––is predictive of sexual and reproductive outcomes among female adolescent children. Logistic regression was performed to test this association. Results Results showed that having a mother who lacked sexual empowerment increased the odds of early sexual initiation. Girls who had a mother who had a teenage birth were more likely to experience teenage pregnancy themselves. Conclusions Mothers may influence daughters’ attitudes towards sex through their own demonstration of sexual empowerment. This research demonstrates that a lack of maternal sexual empowerment can be a risk factor of early sexual initiation, teenage pregnancy, and lack of contraception use among female adolescents. More research is needed to confirm the robustness of these results and analyze other forms of sexual empowerment. Limitations Other variables not present in the data, like domestic violence, can be used to understand the sexual activity of young females and maternal sexual empowerment. Social desirability and recall bias are also common forms of bias in surveys regarding sexual activity among adolescents.