This study aims to determine how the effect of work discipline on teacher performance in SMA Negeri 1 Rantau Alai, Rantau Alai District, Ogan Ilir Regency. The population in this study amounted to 36 people. The sample in this study used a census in which all members of the population were respondents, totaling 36 people. This study uses primary data through questionnaires to respondents. The a…