The study investigated the rationale for students' participation in university governance and organizational effectiveness. A descriptive research of survey design was adopted. The population consisted of all staff and students of Ekiti State University, Ado Ekiti, Ekiti State and Adekunle Ajasin University, Akungba-Akoko, Ondo State. 700 subjects were selected through stratified and simple random sampling techniques. A validated questionnaire titled "Questionnaire on the Rationale for Students' Participation in University Governance and Organizational Effectiveness" (RSPUG) with a reliability coefficient of 0.93 was administered on the subjects. The data collected were analyzed descriptively. Simple percentage was employed to answer the research question, while the research hypothesis was tested using Pearson product moment correlation technique. Rationale for students' participation in university governance was identified. A significant relationship was established between organizational effectiveness and the rationale for students' participation in university governance. The study recommended students' representation on all university statutory committees, senate and council committees inclusive.