This study aims to analyze the influence of supervision and principal leadership on the performance of elementary school teachers in Ilir Timur II District. The research employs a quantitative design, utilizing a survey method. The instrument, a questionnaire, has been tested for validity and reliability. The research population consists of all elementary school teachers in Ilir Timur II District, using a total sampling. Data are analyzed with multiple linear regression. The results indicate that supervision has a significant impact on teacher performance (? = 0.421; t = 4.32; p < 0.05). Principal leadership also significantly affects teacher performance (? = 0.367; t = 3.95; Sig. < 0.05). Together, supervision and principal leadership account for R² = 0.52, or 52%, of teacher performance. The remaining 48% is influenced by other factors. The novelty of this research lies in focusing on both supervision and principal leadership together in Ilir Timur II, a topic rarely studied integratively at the elementary level. This finding reinforces that a combination of systematic supervision strategies and effective leadership styles can be key to improving teacher performance in urban areas.