This study assessed the library services provided in federal, state and private universities in Ogun State, Nigeria. The study adopted a descriptive survey design. Questionnaire was the tool used for data collection. The study population consisted of 110 respondents from University of Agriculture (UNAAB), Abeokuta, 287 respondents from Tai Solarin University of Education (TASUED), Ijebu-Ode and 215 respondents from Redeemer’s University (RUN), Mowe, given a total of 612 respondents from the three selected universities in Ogun State, Nigeria. Purposive sampling was used to select the universities and the respondents. A total of 612 questionnaires were administered on all the respondents and 403 questionnaires were retrieved and analyzed given a response rate of 70%. A descriptive statistical method was used to analyze the data displayed in tables and percentage while hypotheses formulated was tested using the Kruskal-Wallis analysis and Chi-Square. A pre-test of 65 questionnaires were first administered and analyzed to estimate reliability co-efficient. The instrument yielded reliability co-efficient of 0.866%. We therefore concluded that the instrument was reliable. Finding from the study shows that electronic information resources services, internet services and circulation services were the services fully provided and utilized by the respondents, as displayed on Table 3; while CD ROM services, online public access catalogue (OPAC),
user education, selective dissemination of information (SDI) and current awareness were the services moderately provided. It was also evident from this research that reprographic services, abstracting and indexing and literature search services were the least provided as shown on Table 3. The result of the formulated hypotheses shows there was significant difference in the library services provision and services expectation by Academic staff of federal, state and private universities. The findings affirmed that service provision in any library is an essential activity. University libraries should ensure to provide effective and adequate services to match with the expectations of library users especially the academic staff.