Abstract: This study investigated the relationship between socio-demographic variables and organisational commitment among academic staff of southwestern Nigerian universities. A descriptive research design was used in this study. The sample consisted of 766 (comprising 383 from federal, 153 from state and 230 from private) academic staff, selected from the sampling frame through proportionate stratified sampling technique.Data collected were analysed using the Crosstab Chi-Square. Results revealed that that there is a statistical significant association between university type and organisational commitment; years in present university and organisational commitment; age and organisational commitment. On the other hand, there is no statistical significant association between job status and organisational commitment; gender and organisational commitment; marital status and organisational commitment.