H. E. Eduardo Jiménez de Aréchaga (8 June 1918 – 5 April 1994) was a Uruguayan jurist. Professor of Public International Law in the Universidad de la República (National University) School of Law and in the Law School of the Catholic University of Uruguay (Universidad Católica del Uruguay). Among other writings, he wrote the chapter on State Responsibility in Max Sorensen's Manual of Public International Law.
Jiménez de Aréchaga held a seat on the United Nations' International Law Commission from 1960 to 1969. He was the president of the ad hoc court of arbitration that was established by Canada and France to decide the 1992 Canada–France Maritime Boundary Case. He was also President of the "Raimbow Warrior" case arbitral tribunal.
He then served as a judge on the International Court of Justice (ICJ or "World Court") between 1970 and 1979, including a period as President of the ICJ from 1976 to 1979.
He died in a car accident in Punta del Este, Uruguay, in 1994.