Unit 217, frequently called Duvdevan (Hebrew: דובדבן, lit. 'cherry'), is a mistaʽaravim unit in the Commando Brigade of the Israel Defense Forces.

It is notable for its undercover operations in urban areas, during which its operators often wear civilian clothing to disguise themselves among the local Arab populace. The unit is also known to have highly trained members in both human and mechanical counter-surveillance. Unit 217 performs many high-risk and complicated operations, including targeted killings of militants and a range of other undercover operations in Arab regions, many of which are classified.

According to the Israel Defense Forces (IDF), Unit 217 was established in June 1986 to deal with "security events" in the West Bank, especially in its densely populated civilian areas. During the 2015–2016 violence wave, the unit was involved in the arrests of the killers of Eitam and Naʽama Henkin, Hafna Meir, and rabbi Yaʽakov Littman (sometimes spelled Litman) and his son. For its work during this period, Unit 217 received the Israeli Chief of Staff citation.

Roni Numa was a commander of the Duvdevan Unit before being promoted to aluf (major general).

Upon joining the Commando Brigade, Unit 217 expanded its operational activities.

The unit is part of the "Oz" 89th Commando Brigade (a brigade dedicated solely to special operations), but Duvdevan operators undergo basic training in the Paratroopers Brigade. Unit 217 is most similar to the Yamas unit of the Israel Border Police.

The Netflix television series Fauda focuses on a fictional Israeli elite unit modeled after Duvdevan. The series was co-created by Lior Raz and Avi Issacharoff; Raz formerly served in the unit.

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  Duvdevan September 2020
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  Duvdevan Unit, March 2022
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  Iron Swords Duvdevan Unit-006
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  Joint exercise of the Duvdevan Unit and the 601st Special Forces Group of the Czech army

• Heroes for life
• Israeli Special Forces Units
• Kidon
• Samson Unit
• Killing of Shireen Abu Akleh, alleged to be involved in the 2022 killing of a jounalist

• Cohen, Aaron; Century, Douglas (2008). Brotherhood of Warriors: Behind Enemy Lines with a Commando in One of the World's Most Elite Counterterrorism Units. New York: Ecco, Harper Collins. ISBN 978-0-06-123615-0.

• Garret Machine