Learning environment and teachers\u27 professional competence are factors which can affect students\u27 achievement. The objective of the study was to determine the influence of learning environment and teachers\u27 professional competence toward students\u27 achievement either partially or simultaneously. The populations were 133 students and the samples were 100 students. Then, data were collected by questionnaires and documentation. The calculation of multiple regression resulted the equation of Y = 60.866 + 0.114 X1 + 0.048 X2. The coefficient of determination simultaneously; learning environment and teachers\u27 professional competence toward students\u27 achievement was 53.3%, the coefficient of determination partially; learning environment toward students\u27 achievement was 26.3%, and teachers\u27 professional competence toward students\u27 achievement was 16.9%. It was concluded that there was significant influence of learning environment toward students\u27 achievement, there was no significant influence of the teachers\u27 professional competence toward students\u27 achievement, and there was significant influence of learning environment and teachers\u27 professional competence toward students\u27 achievement
