The Tanzania Association of Non-Governmental Organizations (TANGO) is the largest and longest standing national umbrella organization serving the Tanzanian NGO community. It was founded in 1988 by 22 NGOs. The coalition now has a membership of more than 500 NGOs and collaborating with 30 district and 6 regional generic NGO networks. As an umbrella body it is committed to promoting the well being of its constituency by acting as a unifying organ and mandated representative in advocating for transformation for the common good.

TANGO envisions a strong and vibrant society in Tanzania where NGOs are taking an active and effective role in promoting people-centered development. TANGO seeks to participate in advancing development initiatives that are based on the values of justice, peace, good governance, human rights, gender equality and equity, and sustainable human development.

TANGO's Secretariat is composed of ten fulltime staff working in inter-connected functional departments. The Executive Director is the Chief Executive Officer for the organisation and is responsible for the overall implementation, supervision and reports to the Executive Committee. The highest governance body of TANGO is its General Assembly composed of all members that takes place every three years where a new Executive Committee is democratically elected.