The quest for development and its sustainability has been a top priority for governments, societies, international political organisations, the academia and non-governmental organisations across the globe. The aim of this paper is to examine the imperative of Christian ethical values towards attaining sustainable development in Nigeria. Data for the study were collected via exiting literature on the subject matter, statistical information on development issues, as well as personal experience of the researcher. The findings revealed that there has been no meaningful development in modern day Nigeria or a sustainable development as apparent in the level of poverty, infrastructure decay, falling standard of education, poor health care delivery system, low life expectancy and unemployment in the country. This development is largely attributable to the neglect of Christian ethical values by both the leaders and followers, who profess Christianity. Thus, the paper recommended moral transformation on the part of all Christians in order to achieve sustainable development which has been obscure in the country.