This study investigated the relationships between burnout and self-efficacy among school counselors. Also, the level of their burnout and self-efficacy was examined in terms of the social support, task perception and the number of students. A sample of 194 school counselors filled out the Maslach Burnout Inventory, The School Counselors Self-Efficacy Scale, and Personal Information Sheet. For the analysis of the data, Pearson correlation coefficient, regression, t and F tests were employed. The results of the study revealed that self-efficacy predicted depersonalization and personal accomplishment dimensions of burnout in school counselors. In addition, it was found that the counselors who take social support, have a positive attitude towards their profession and the lower number of students counselor provide service, the lower the burnout and higher the self-efficacy belief.