The study, which aimed to reveal the relationship between secondary school teachers' workplace friendship perceptions and their job satisfaction, was conducted with 269 volunteer teachers. In accordance with this purpose, Workplace Friendship Scale and Minnesota Job Satisfaction Scale were used in the study. In this study, which was designed in the relational screening model, descriptive and inferential statistical techniques were used. As a result of the study, it was found that secondary school teachers' friendship opportunity and internal job satisfaction perception levels were high. It was revealed that the teachers' friendship perceptions differed significantly according to marital status and gender, and their job satisfaction levels differed significantly according to age, marital status and professional seniority. It was also revealed that there were moderate level and positive relationships between the teachers' job satisfaction and workplace friendship perceptions. It was determined that the teachers' friendship opportunity perceptions predicted their job satisfaction significantly and positively.