The primary goal of this research was to investigate the relationship between school self-leadership and effective communication among 5th-grade students at the Joint Action Educational Institution "Nuestra Señora de Loreto Nauta" in 2023. Methodology: The approach was relational, utilizing a non-experimental, field based, cross-sectional, and bivariate design. Data were collected using a survey administered to 194 students, who comprised both the study's population and sample. The questionnaires were previously validated to ensure the reliability of the collected data. Results: Statistical analysis revealed a positive and statistically significant correlation between school self-leadership and effective communication. Notably, the Kendall’s Tau-b coefficient was 6.818 with a significance level of 0.000 (p < 0.05), indicating that an increase in student self-leadership is linked to en...