Using the theory of planned behaviour (Ajzen, 1985, 1991), this study examined the intentions of preservice teachers regarding use of the case study method in their social studies classes. The participants were 314 preservice teachers (219 elementary school; 95 social studies) and the study was conducted in the spring term of the 2017-2018 academic year at the Faculty of Education of a state university in Turkey. It was found that although there were no significant differences in subjective norm and perceived behavioural control, the attitude and intention scores of the preservice teachers showed significant differences by gender. No significant differences were found between junior and senior year preservice teachers or between preservice elementary school teachers and social studies teachers. Moreover, it was found that the intentions of preservice teachers to use the case study method in their social studies classes were significantly and positively related to attitude, subjective norm and perceived behavioural control.