The paper examined effect of bank consolidation on economic growth in Nigeria Data were collected from CBN statistical bulletin and NDIC annual report 2020. Expost facto design was employed for the study. Ordinary least square regression was used to analyze the data. The findings showed that consolidated total assets had a positive and significant effect on gross domestic product, consolidated deposit mobilization had a positive and significant effect on gross domestic product and consolidated shareholders’ funds had no significant effect on gross domestic product. Based on the findings, we therefore recommend that bank management should sustain the consolidated total assets because of its contribution to the gross domestic product in Nigeria, bank should also sustain and even mobilize more deposit from the public because it helps to enhance the economic growth in Nigeria etc.