Samantar v. Yousuf, 560 U.S. 305 (2010), is a decision by the United States Supreme Court concerning whether Muhammad Ali Samatar, prime minister of Somalia (during the dictatorship of Siad Barre) from 1987 to 1990, could be sued in United States courts for allegedly overseeing killings and other atrocities. Samatar then lived in Virginia, and some of his victims had sued him under the Torture Victim Protection Act of 1991.

In a previous decision, the United States Court of Appeals for the Fourth Circuit held that the former Somalian government official is not covered by, and therefore not entitled to immunity under the Foreign Sovereign Immunities Act. The Court remanded to District Court to determine whether defendant is entitled to common law immunity.

• List of United States Supreme Court cases, volume 560
• Jones v. Ministry of Interior for the Kingdom of Saudi Arabia (comparable 2006 decision of the House of Lords)

• Liptak, Adam (March 3, 2010), "Supreme Court Weighs Lawsuit Over Torture in Somalia", New York Times.
• Liptak, Adam (June 1, 2010), "Mere Silence Doesn't Invoke Miranda, Justices Say", New York Times.

• Text of Samantar v. Yousuf, 560 U.S. 305 (2010) is available from: CourtListener Justia Oyez (oral argument audio) Supreme Court (slip opinion) (archived)