This paper provides a gender analysis of intraparty nomination in the context of Tanzania’s general elections in 2020. The study shows how party structures, parties’ rules and regulations, national laws and institutional set up, country’s political culture and social economic factors affect women participation in party politics. In summary, the analysis shows that there is weakness in the national legal and institutional framework in compelling parties to be gender responsive in their internal processes. It provides recommendations on how the legal, institutional framework and the structures that guide the process can be reformed to counter gender imbalances in political processes and promote effective women participation in political processes in Tanzania.