Warren Weinstein (born July 3, 1941) is an American contractor, and director in Pakistan for J.E. Austin Associates. He was kidnapped by al-Qaeda on August 13, 2011 in Lahore, Pakistan.
He earned an MA in international relations, and PhD in international law and economics, from Columbia University. He was a professor at State University of New York at Oswego. He had a home in Rockville, Maryland.
Kidnapping for ransom is common, but it was rare for criminals to target foreigners. Three guards and his driver are being held. On November 1, 2011, arrests were made in the case. On December 1, 2011, al-Qaeda leader Ayman al-Zawahiri claimed to be holding him.  
In May 2012, al-Qaeda released a proof of life video of Weinstein.
Al-Qaeda released another proof of life video in December 2013.
- Warren Weinstein, John J. Grotpeter, The pattern of African decolonization: a new interpretation, Program of Eastern African Studies, Syracuse University, 1973, ISBN 978-0-915984-07-7
- Chinese and Soviet aid to Africa, Praeger Publishers, 1975, ISBN 978-0-275-09050-0
- Warren Weinstein, Robert A. Schrire, Political conflict and ethnic strategies: a case study of Burundi, Maxwell School of Citizenship and Public Affairs, Syracuse University, 1976
- Soviet and Chinese aid to African nations, Praeger, 1980, ISBN 978-0-03-052756-2
- A sea of troubles: decolonization in Burundi, 1958-1962, University Microfilms International, 1985
- Ellen K. Eggers, Warren Weinstein, Historical dictionary of Burundi, Scarecrow Press, 1997, ISBN 978-0-8108-3261-9
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- By AFP. "Al Qaeda claims kidnapping of Weinstein in Pakistan – The Express Tribune". Tribune.com.pk. Retrieved 2011-12-03.
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- Dan Murphy (December 2, 2011). "Is kidnapping older, unarmed civilians all that's left for Al Qaeda?". The Christian Science Monitor.
- Hussain, Tom (January 25, 2012). "Al Qaida still holding American contractor hostage in Pakistan". McClatchy Newspapers. Retrieved February 17, 2012.
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- "Topic Galleries". Chicago Tribune.
- "U.S. hostage urges Jewish groups to work for his release". Reuters. 2012-09-13.
- Londoño, Ernesto (2013-12-26). "National Security". The Washington Post.