Labour productivity is a vital economic indicator that is closely linked to competitiveness, economic growth and living standard within an economy. It provides the general information about efficiency and quality of human capital in the production process. This study examined the effects of gender employment and wage disparities on sectoral labour productivity in Nigeria for the period 1991 to 2019, using error correction model (ECM). The results showed that the effects of gender employment and wage disparities on labour productivity differed in the sectors, both in the short-run and long-run. The finding remained valid even when the disparities were moderated with education. Therefore, the study concluded that the effects of gender disparities on productivity in the sectors were heterogeneous. Consequently, the paper emphasised the need for the Federal Government of Nigeria to implement female education-friendly policies. Also, there is the need for employers in the Nigeria productive sectors to jettison gender prejudice in their employment decisions so as to engender increased and sustainable labour productivity.