The quest for good governance has become a fundamental issue in political discourse in Nigeria since the re-introduction of democratic governance in 1999. However, available evidence in terms of growing level of poverty, public sector corruption, crises in various sectors; energy, education, health, transportation, security and the economy, show that there is no direct nexus between democracy and good governance. The paper relied on secondary data from relevant published books, scholarly journal articles, conference and institutional papers, and internet materials. It adopted group theory as its theoretical construct and used the theory to propose that Christians and Muslims as the major religious groups in Nigeria should influence positively the achievement of good governance through adherence to moral ethical values in their public and private live. The paper argued that there are linkages between moral ethical values shared by both religious groups such as; trustworthiness, fairness/justice, compassion/caring, love for others and the characteristics of good governance such as; Accountability, transparency, responsiveness, equity in allocation of resources and adherence to the rule of law. The paper concluded that given the passion and zeal with which people pursue their religious beliefs, a transfer of this commitment and devotion by both Christians and Muslims in the pursuit of good governance will likely lead to achievement of good governance than the political approach.