Abstract: The purpose of financial reports is to deliver reliable financial information that is useful for different categories of stakeholders to take well-informed decisions. The primary role of the audit committee is to supervise the internal process of preparing financial report and to ensure that the conflict of interest between management and shareholders is minimized so as to enhance the quality of financial report. The study examined the effect of Audit Committee Effectiveness on the growth of Firms Performance in Nigeria with emphasis on Eight Public Quoted Banks in Nigeria. The data were sourced from the annual reports and accounts of eight banks in Nigeria for 2011-2015 independent variables proxied on the size of audit committee, the frequency of meetings of audit committee and the financial literacy of audit committee members while profit before tax was the dependent variable.