The purpose of this study is to find out the utilization of electronic information resource databases in University libraries in South-South, Nigeria. 6 (six) research questions and 4 (four) hypotheses were formulated to guide the study. The survey design was employed. The population of the study was made up of 1,421 lecturers and 922 postgraduate students. Data collection was done through the use of questionnaire titled Utilization of Electronic Information Resource Databases in University Libraries (UEIRDUL).The research questions were analyzed using percentages, while z-test proportion of difference of significance was used to test the hypotheses at 0.05 level of significance. It was found that lecturers and postgraduate students in the federal and state university libraries use different types of EIR database. The level of usage of EIR databases by lecturers and postgraduate students in the federal and state university libraries in South-South, Nigeria was generally high as most of them indicated that they use these resources frequently for their academic activities. The proportion of lecturers and postgraduate students in the federal and state universities that use the EIR databases for different purposes do not differ significantly. It was recommended among others that librarians in both universities should identify non users of the EIR databases and effective steps should be taken to encourage them to use the databases.
Keywords: EIR databases, Libraries, Nigeria, Universities in South-South, Utilization
