This study investigated the relationship between teachers' decisional participation and job satisfaction in secondary schools in Ekiti State. The study also examined the level of teachers' participation in decision making and level of job satisfaction. A descriptive research design of correlation type was adopted for the study while the population for the study comprised all the teachers' teaching in the public secondary schools in Ekiti State. The sample consisted of 270 teachers selected through multistage and simple random sampling techniques. Data were collected with the aid of a questionnaire. The reliability coefficient for the instrument used was 0.84. The data obtained were analyzed using frequency counts, mean, standard deviation, Pearson product moment correlation and multiple regression analysis. Hypotheses formulated for the study were tested at 0.05 level of significance. The study revealed that the level of teachers' participation in decision making in their respective schools was low. The study also revealed that there was significant relationship between teachers' decisional participation and their job satisfaction. It was also revealed that teachers' job satisfaction was significantly related to the level of teachers' decisional participation in school financial matter, conflict resolution, examination matters, staff welfare, disciplinary matters, school academic work and co-curricular activities. Based on the findings, that the levels of teachers' decisional participation in school management were relatively low, government and stakeholders in education should ensure that teachers actively participate during school decisions making which would somehow influence their profession. Effort to bridge the communication gap and alienation, principals of senior secondary schools should allow their teachers to participate in decision making process on school financing, conflict resolution, staff welfare, disciplinary matters, academic work, and co-curricular activities. This could boost teachers' level of job satisfaction.