This research examines how religious crises and conflicts have affected development in Nigeria. The destruction of lives and property by religious extremists has been a challenge to development in Nigeria. It aims to find the major causes of this crisis and conflicts and find everlasting solutions to the root causes. This research concludes that religious intolerance from different religious groups in Nigeria was a result of the misinterpretation of religious teachings of the leaders of terrorist groups to their followers. It also finds out that religious crises and conflicts in Nigeria affect development as they lead to loss of lives and destruction of property. It also dictated that the effects of crisis and religious conflicts in Nigeria led to an increase in the unemployment rate, withdrawal of foreign investments and education imbalance. The research concludes that religious crises and conflicts are unhealthy for the nation’s development. It is recommended that religious leaders form the minds of Nigerians with the teaching of love and peace, as it is proclaimed in their various religious books and beliefs.
Keywords: conflicts, crisis, development, effects, nigeria, religious