Ghana and Nigeria are two countries in the West African sub-region that share significant historical similarities like British colonialism, nationalism, economic crisis, prolonged military rule, multi-party democracy and are in their fourth republics. With the global democratization process, Ghana and Nigeria successfully made the transition to civil rule in 1992 and 1999 respectively and are rated differently on the democratization scale. While the former is rated high, the latter is rated low in comparative ranking within the same period of democratization. This paper set out to assess the effectiveness of electoral administration bodies in the conduct of credible and acceptable elections in Nigeria and Ghana and to suggest possible ways of improving election administration in line with international best practices. With intense reliance on descriptive analysis, the paper noted that whereas Ghana has made impressive progress in the democratization process in terms of effective administration and the overall quality of elections, Nigeria is yet to record such impressive progress. The paper also observed that the independence of electoral management body and effective leadership played positive roles in enhancing effective electoral administration in Ghana while the reverse is the case in Nigeria. Consequently, the paper recommended among others, overhauling and strengthening of Electoral Commission of Nigeria to make it independent in the discharge of its responsibilities, while the Electoral Commission of Ghana should strive to sustain its cooperation with all stakeholders in the electoral process to ensure credibility in the management of elections.