Jamaat Ansar al-Sunna

Jamaat Ansar al-Sunnah (Arabic: جماعة أنصار السنه, romanized: Jama'at 'Anṣār as-Sunnah, lit.'Assembly of the of Sunnah'), also known as Jaish Ansar al-Sunna ('Army of the Helpers of Sunnah'), Ali ibn Abi Talib Battalion or simply as Ansar al-Sunnah was an Iraqi Sunni insurgent group that fought against United States troops and their local allies during the Iraq War. The group was primarily based in northern and central Iraq, and included mainly Iraqi (mostly Arab but also Kurdish) fighters. In 2007, it split into Jama'at Ansar al-Islam and , which changed its name to in 2011.

The group has been a Proscribed Organisation in the United Kingdom under the Terrorism Act 2000 since 14 October 2005.