The study investigated the correlates of job stress among university lecturers in Rivers State. Correlational design was adopted for the study. A sample of 208 university lecturers was drawn through proportional stratified random sampling technique from a population of 308 lecturers in the faculties of education of the three universities used for the study. Two research questions and two null hypotheses guided the study. The instruments for data collection were Correlates of Job Stress Questionnaire (coded CJSQ) and Job Stress Questionnaire (JSQ) made up of 24 and 21 items respectively. The instruments were validated by experts in Educational Psychology Guidance and Counselling, Measurement and Evaluation. The reliability coefficients of 0.78 and .080 were established using Cronbach alpha technique. Multiple regression and beta value were used to answer the research questions while analysis of variance (ANOVA) and t-test were used to test the hypotheses at 0.05 alpha level. The result of the study reveals that workload, insufficient facilities and over population of students jointly, independently and significantly relate to university lecturers' job stress. The researchers recommend that lecturers should develop coping strategies and the university administration should adopt practices that will help to alleviate job stress among university lecturers' to enable them contribute to the human resources and technological needs of the nation among others.