The quality of education needs to be improved, including the lack of facilities for learning and the professional abilities of teachers. Teachers can enhance their competence through training programs and by improving their academic qualifications, which are expected to have an impact on their competence. School principal leadership plays a role in enhancing teacher competence. The purpose of this research is to determine the influence of training programs, academic qualifications, and school principal leadership on teacher competence, as well as the combined effects of these factors. The research method used was quantitative research, with a population of 321 teachers and a sample size of 106 teachers. Simple random sampling was employed as the sampling technique, and data were collected through questionnaires and documentation, with regression analysis used for data analysis. The results of the research indicate that there is an influence of training programs, academic qualifications, school principal leadership, the combination of training programs and academic qualifications, the combination of academic qualifications and school principal leadership, the combination of training programs and school principal leadership, the combination of training programs, academic qualifications, and school principal leadership on teacher competence. This research concludes that teacher competence in North Sangatta District, East Kutai Regency, is influenced by the training programs attended, academic qualifications, and the leadership of the school principal, all of which contribute to improving teacher competence.