This study examined the influence of leadership behaviour on the organizational commitment of academic staff at Kyambogo University. Specifically, the study examined the influence of directive, supportive, participative and achievement-oriented leadership behaviours on the commitment of academic staff to their job.Using a positivist research paradigm, this correlational study involved a sample of 175 full-time academic staff of Kyambogo University. Data was collected using aself-administered questionnaire and analysed using Partial Least Square StructuralEquation Modelling (PLS-SEM). The results indicated that while participative leadership behaviour positively and significantly influenced the organizational commitment of academic staff, directive and supportive leadership behaviors had a negative and insignificant influence on organisational commitment of academic staff. Nonetheless, achievement-oriented leadership behaviour had apositive but insignificant influence on academic staff job commitment. Therefore,directive leadership behaviour impedes the organisational commitment of academic staff, supportive leadership behaviour leads to low organisational commitment of academic staff, participative leadership behaviour is essential for the organisational commitment of academic staff, and achievement-oriented leadership behaviour contributes less to organisational commitment of academic staff. It was recommended that university leaders should minimise the use of supportive and directive leadership behaviours in preference for participative leadership behaviour while not entirely ignoring engagement in achievement-oriented leadership behaviour.