Counterproductive work behaviours, (CWBs) as they are referred to, are not just behaviours that employees engage in that go against or hinder the attainment of Corganisational goals, but they are those that also negatively affect fellow employees. As part of research efforts towards understanding the antecedents of counterproductive work behaviours in the workplace, the present study investigated the influence of job stress on counterproductive work behavioursamong non-teaching staff of Universities in Benue State. The participants were 348 non-teaching staff selected from three different universities in Benue State. Data were collected using The New Job Stress Scale, and Counterproductive Work Behaviours Check List. Results of multiple linear regressions, revealed that job stressors (time stress, anxiety stress, role expectation conflict, co-worker support and work life balance) significantly predicted counterproductive behaviours of abuse, production deviance, sabotage and theft. However, the results indicated that anxiety stress, co-worker support and work-life balance did not predict withdrawal among non-teaching staff of universities in Benue State.. It was concluded that job stress factors, both independently and jointly are important factors in determining counterproductive work behavours of non- staff of Universities in Benue State. Based on the findings, it was recommended that management of the Universities should evolve policies that aimed at training and retraining staff on appropriate coping strategies which will help in reducing job related stress and therefore reduces the incidence of counterproductive work behaviousr among the staff.