Women in Nigeria are faced with various challenges both at the private and public sector. As a result of this, there are gender imbalance that tends to take place among both sexes. There are various gender inequalities that preoccupies the system which ranges from violence to abuses, discriminations as well as denial to political offices. Even though the attainment of gender equality is not only seen as an end in itself, it is equally an end in ingredients to and a product for the achievement of sustainable development of countries. The method of the research work is based on the secondary source of analysis which is done through the use of journals, internet materials and other archival sources of information which is going to be relevant. Though Nigeria as a country with the Federal Ministry of Women Affairs and Poverty Alleviation and Nigeria has been a signatory to various international treaties and policies as well. Various discoveries has revealed that gender inequality is a great challenge to Nigeria even as a developing country, such as discriminations that women are faced with including abuses. Although, the UN been an International Organization having established various policies such as the Convention on the Elimination of All Forms of Discrimination Against Women (CEDAW) etc. Despite all these policies that have been established for the purpose of nullifying the distinction, exclusion made on the basis of sex, UN itself still encounters various problems, such is the fact that women work more than women but are still been paid low. With this policies, UN still have its challenges such that lack of women to improper education, cultural and social beliefs of the women, poor recognition of women issues etc are still some of the challenges the United Nations is facing. In conclusion, if all the policies that the United Nation has established coupled with the treaties that Nigeria has signed are put into effect, it will thus increase the knowledge of women as well as curb barriers that are been placed against women, such as vying for political positions, for instance, in Brazil and Germany; they have females as their Presidents known as Chancellor, Nigeria also can get to that position.