The Group of 77 (G-77) was established on 15 June 1964 by 77 developing countries signatories of the Joint Declaration of the Seventy-Seven Countries issued at the end of the first session of the United Nations Conference on Trade and Development (UNCTAD) in Geneva.

As the largest intergovernmental organization of developing countries in the United Nations, the G-77 provides a means for developing countries to articulate and promote their collective economic interests and enhance their joint negotiating capacity on all major issues within the United Nations system, including the promotion of SSC for development.

Although the membership of the G-77 has increased to 131 countries, the original name has been retained owing to its historic significance. Since 2000, the G-77 has convened South Summits every five years and the Special Unit has been called on to implement some of the decisions of the first and second South Summits.

G-77 website: http://www.g77.org/