Ansar al-Sharia (Derna)
{{infobox war faction
| name = Ansar Al-Sharia (Derna, Libya)
| native_name_lang = ar
| war = Libyan Civil War
| image = Flag of Ansar al sharia.jpg
| caption = The flag of the group
| active = 2011–2018
| ideology =
| leaders = Abu Sufian bin Qumu (POW)
| allies = Abu Salim Martyrs Brigade
Jaysh al-Islami al-Libi{{cite web|title=The Rise and Decline of Ansar al-Sharia in Libya|url=http://www.hudson.org/research/11197-the-rise-and-decline-of-ansar-al-sharia-in-libya|work=Hudson Institute|date=6 April 2015|accessdate=8 April 2015}}
| headquarters =
| area = Eastern Libya (Cirenaica)
| size =
| predecessor =
| opponents = {{Flag|Islamic State}}
| partof = Shura Council of Mujahideen in Derna
| battles = Second Libyan Civil War
}}
Ansar al-Sharia is the Derna based branch of a larger Libyan group; the branch is headed by Abu Sufian bin Qumu.
{{Cite news|url=https://foreignpolicy.com/articles/2012/09/21/know_your_ansar_al_sharia|title=Know Your Ansar al-Sharia|author=Aaron Zelin|publisher=Foreign Policy|date=21 September 2012|accessdate=10 January 2014}} In 2011 bin Qumu became the leader of a band of fighters in his hometown of Derna during the 2011 Libyan civil war.{{cite news|url=https://www.telegraph.co.uk/news/worldnews/wikileaks/8472816/WikiLeaks-Guantanamo-detainee-is-now-Libyan-rebel-leader.html|title=WikiLeaks:Guantanamo detainee is now Libyan rebel leader|author=Holly Watt|publisher=The Daily Telegraph|date=26 April 2011|accessdate=10 January 2014}} The group was reported as disbanding itself following the U.S. Consulate attack in Benghazi{{Cite news|url=https://www.reuters.com/article/us-protests-libya-idUSBRE88M08D20120923|title=Libyan army tackles rogue militias as two disband|author=Marie-Louise Gumuchian and Peter Graff|publisher=Reuters|date=23 September 2012|accessdate=10 January 2014}} however by late 2013 the group had re-emerged in the city as a branch of the Benghazi-based Ansar al-Sharia under the slogan "A step toward building the Islamic state".{{Cite news|url=http://magharebia.com/en_GB/articles/awi/reportage/2014/02/28/reportage-01|title=Slow death of Derna|author=Aya Elbrqawi|publisher=Magharebia |date=28 February 2014|accessdate=1 March 2014}}
In December 2014, Ansar al-Sharia joined the Abu Salim Martyrs Brigade and Jaysh al-Islami al-Libi in an umbrella organisation called the Majlis Shura al-Mujahidin Derna (Derna Mujahidin Consultative Council). The group has been involved in fighting with the forces of General Khalifa Haftar in the Second Libyan Civil War.
Ansar al-Sharia and the Majlis Shura al-Mujahidin Derna have opposed the Islamic State of Iraq and the Levant presence in Derna.