International Journal of Information Studies Ogunlana, E. K., Okunlaya, R. O. A. 5 2 2013 https://www.dline.info/ijis/fulltext/v5n2/ijisv5n2_1.pdf Information Professionals around the world like other professionals experience stress caused by different factors highlighted in the study. The study examined the relationship between job stress and job satisfaction among a population of 87 Information Professionals. Descriptive survey research method was used. Job stress levels were assessed using the Job Stress Scale (JSS) adapted from Stress Indicators Scale (2007) and job satisfaction levels were measured using the Job Satisfaction Questionnaire of [17] and graded by Likert scale with degree of agreement range between low to high (1-5). This research was designed for the Information Professionals employed in the libraries in South West Nigeria. Data were collected through the questionnaire designed and were subjected to statistical analysis using simple percentage, mean, standard deviation, t-test statistics and Scheffe post-hoc analysis. The study revealed that the mean scores for satisfaction were low for workplace characteristics. Female Information Professionals had significantly lower job satisfaction (mean job satisfaction score difference = 12.2; 50.5%, p > 0.05), as compared to their male counterparts (mean job satisfaction score difference 21.0: 49.5%, p < 0.05); and a positive correlation was found between job satisfaction and Information Professionals’ job stress (r = 0.69, a < 0.05). The findings also revealed that majority of the Information Professionals had low job satisfaction level and higher levels of job stress. These results have implications for addressing job stress and job satisfaction in academic libraries.