This study investigates the relationship between organisational justice and employee commitment of private secondary school teachers in Nigeria using survey design. Twenty (20) private secondary schools were selected in Bayelsa State using simple random sampling. Four hundred and eighty (480) teachers were surveyed. Sample of two hundred and fourteen (214) was determined using Krejcie and Morgan sample size determination table. Two hundred and fourteen (214) copies of questionnaire were administered to the teachers but one hundred and eighty three (183) copies were correctly filled and returned. Pearson Product Moment Correlation Coefficient (rs) was used to analyse the hypotheses. It was found that organisational justice has positive significant association with employee commitment. This study concludes that organisational justice measured in terms of distributive justice, procedural justice and interactional justice enhances employee commitment in selected private secondary schools in Nigeria.