This study aims to analyze: (1) The effect of the principal's academic supervision on the performance of Physical Education teachers in State Elementary Schools throughout Sleman Regency. (2) The influence of school culture on the performance of physical education teachers in public elementary schools throughout Sleman Regency. (3) The effect of the principal's academic supervision and culture on the performance of Physical Education teachers in State Elementary Schools throughout Sleman Regency. This type of research is quantitative with an ex post facto approach. The population in this study were Physical Education Teachers at State Elementary Schools throughout Sleman Regency. Researchers did not examine the entire population, but a representative sample was taken. Calculating the sample size using the 5% error rate formula, repeating 238 teachers. The instrument used is a questionnaire. The data analysis technique used ANOVA analysis. The results showed that (1) There was a significant effect between the principal's academic supervision on the performance of teachers in public elementary schools throughout Sleman Regency, with a significance value of 0.000 <0.05. (2) There is a significant influence between school culture on the performance of Physical Education teachers in State Elementary Schools throughout Sleman Regency, with a significance value of 0.000 <0.05. (3) There is a significant effect between the principal's academic supervision and culture on the performance of Physical Education teachers in State Elementary Schools throughout Sleman Regency, with a value of sig. 0.000 < 0.05.