This study investigates cataloguing and classification as a predictor of library use among users of libraries of public universities in Kwara State. Descriptive survey method is used for the population of users of libraries of Kwara State University, Malete and University of Ilorin. Convenience sampling is used to select 427 users who filled the online questionnaire titled Questionnaire for Cataloguing and Classification as a Predictor of Library Use among Users of Libraries of Public Universities in Kwara State. Findings revealed that 69.1% of users consult the library catalogues before using information resources, while subject, class number, series and author(s) of information resources are the major access points used in searching and locating information resources to be used in the library. This study concludes that consulting library catalogues before using information resources minimizes the stress users will go through when searching for information resources in the library and increases users’ library usage. It recommends amongst other things that cataloguers and classifiers of libraries of public universities in Kwara State should ensure that catalogue cards are properly filed and subjects of information resources of their libraries are adequately covered in order to enhance easy location and use of information resources.