Enrique Arancibia Clavel (13 October 1944 – 28 April 2011)[1] was a Chilean DINA security service agent who assassinated General Carlos Prats and his wife in 1974.

This assassination was part of Operation Condor, a campaign of political repression and terror implemented in 1975 by the right-wing dictatorships of the Southern Cone of South America against left-wing opponents.

Arancibia received assistance from Michael Townley in planning and executing the attack, which reportedly involved Italian terrorist Stefano Delle Chiaie as well.

[4] In 1978, shortly after Townley's extradition to the United States for the murder of diplomat Orlando Letelier in Washington, D.C. in 1976, Argentine intelligence officers arrested Arancibia for espionage.

Although the Prats case remained open in Chile, Arancibia was released on parole in July 2007 due to technical reasons after spending nearly 20 years in prison in Argentina.