Background and AimsApplying the clinical scenario teaching method using approaches such as group discussion facilitates the possibility of learning and developing creativity in a real clinical learning environment. However, few studies have been done in this field. The present study aimed to evaluate the effect of scenario‐based group discussion training on the creativity level of nursing students.Material and MethodsThis study was a randomized controlled educational trial from January to October 2019 conducted on nursing students at Shiraz University of Medical Sciences. Nursing students were randomly assigned into intervention and control groups (22 per each group). The students in the intervention group participated in a training program consisting of three 60‐min sessions per week for two consecutive weeks. In each session, 2–3 scenarios were presented, and the students discussed about it. Each student was asked to submit a practical activity in a written story. In the control group, the training was conducted in the usual way (Students' presentation and discussion of presented content without scenario presentation). Data were collected using a validated creativity questionnaire. Data were analyzed in SPSS software, version 22, using Chi‐square and t‐test and the significance level was considered p < 0.05.ResultsThe results showed that immediately after the intervention, a difference was observed between the groups concerning the mean score of fluency (p = 0.02) and originality (p = 0.03), but there was not a significant difference between the groups concerning the overall score of creativity (p = 0.09).ConclusionIt can be concluded that scenario‐based group discussion training is effective for improving the dimensions of the fluency and originality creativity of nursing students. It seems that scenario‐based education is an appropriate radical method for traditional education methods.Trial Registration: IRCT Registration Number: IRCT20140503017546N13; Registration Date: 09.05.2018.