This study aims to look at the relationship between instructional leadership style of headmasters with school performance excellence in Johor. In instructional leadership there are three dimensions are defining the school mission, managing the instructional programs and promoting a positive school learning climate program where each dimension has its own role. To conduct this study, a total of 433 primary school teachers were involved as respondents. Teachers were selected as respondents because they were a mobilized resource to improve school performance. This study used quantitative methods and the data were analyzed using Statistical Package for the Social Sciences (SPSS) and Partial Least Square-Structural Equation Mode (PLS-SEM). The results show that defining the school mission and managing the instructional program have a significant relationship with school performance. Therefore, it is necessary to extend this study to other states in Malaysia order to see the effectiveness of this relationship.

Keywords: headmaster; instructional leadership; school performance excellence