This study aims to explain the relation between school administrators' instructional leadership and teachers' instructional moods according to teacher opinions. The research is quantitative in nature and designed in a correlational survey pattern using quantitative research methods. A total of 160 participants took part in the study, selected through simple random sampling method. In data analysis, t-tests and ANOVA were used. Pearson product-moment correlational analysis was employed to determine the relation between school administrators' instructional leadership and teachers' instructional moods. The impact of school administrators' instructional leadership on teachers' instructional moods were analyzed using simple linear regression analysis. It was found that the level of school administrators' instructional leadership was high, and teachers' instructional moods were at a moderate level. Teachers were found to have a higher sense of enjoyment in their instructional moods, while their anxiety levels were relatively low. School administrators' instructional leadership behaviors were found to be consistent across gender, educational level, years of service in the school, and duration of working with the current school administrator. Similarly, no differences were found in teachers' instructional moods concerning gender, educational level, years of service in the school, and duration of working with the current school administrator. A low level of positive correlation was found between school administrators' instructional leadership and teachers' instructional moods. The study concluded that the instructional leadership of school administrators has a minimal impact on teachers' instructional mood states. [This paper was published in: "EJER Congress 2023 Conference Proceedings," Ani Publishing, 2023, pp. 1-23.]