The term ICSID stands for:

International Centre on the Settlement of Investment Disputes

There are certain international bodies which have been working towards harmonizing private laws of different countries and bringing uniformity in their application. The bodies include organizations such as the Hague Conference on Private International Law, the International Centre on the Settlement of Investment Disputes (ICSID), the International Institute for Unification of Private Law (UNIDROIT), the United Nations Commission for International Trade Law (UNCITRAL), and so on.