NGOs (non-governmental organizations) play a vital role in political advocacy by representing various interests, including humanitarian, environmental, and human rights causes. They mobilize public opinion, raise awareness, and influence policy at local, national, and international levels. NGOs often provide essential services and conduct research that informs decision-making, acting as a bridge between the public and governments. Their advocacy efforts can lead to significant changes in legislation or public policy, demonstrating the power of organized citizen action within the political framework.