Political Parties is defined as an organised group of citizens, act together as a political unit, having distinctive aims and objectives involving political questions in the state and acting together and seeking to obtain control of government.

This article deals primarily with the political parties of the First, Second, Third and Fourth Republics of Nigeria. Unlike the nationalist parties of the colonial era whose primary objective was decolonisation, the overriding objective of the post-independence parties was to win political power.