Academic procrastination and personality traits are regarded as important factors affecting academic success and attitudes in education process. This study was to examine the correlation between the subscales of personality traits and the academic procrastination behaviour of pre-service teachers and to explore gender differences in the academic procrastination and personality traits. The research group included 165 female (%77.46) and 48 male (%22.53) preservice teachers studying in Pedagogical Formation Certificate Program at Yildiz Technical University. In the data collection phase of the present research, the Tuckman Procrastination Scale developed by Tuckman (1991) and the Adjective Based Personality Test having been developed by Bacanlı, İlhan and Aslan (2009) were used. The data were analysed using correlation and independent samples t-test. The findings of this study show that the subscales of personality traits were related to the academic procrastination. And, gender difference was not found to be significant in case of it.