This article reports on an investigation of the impact of shared leadership on organizational citizenship behaviour among faculty members in Jordanian public universities. A sample of 558 faculty members employed by three public universities in Jordan participated in the study. The results indicated that shared leadership is moderately practised in Jordanian public universities based on the perceptions of faculty members. Moreover, faculty members exhibited moderate organizational citizenship behaviour as represented by its overall mean score. Finally, results of the study indicated that shared leadership explained 36.4 per cent of the variance in organizational citizenship behaviour, meaning that the practice of shared leadership in the workplace has prediction power of 36.4 in organizational citizenship behaviour of faculty members. The study ended by offering a number of practical and theoretical implications for the field of study. (Contains 6 tables.)