Tajammu Ahrar al-Sharqiya (Gathering of Free Men of the East), commonly referred to as Ahrar al-Sharqiya, was an armed Syrian rebel group founded in 2016 by individuals exiled and displaced mostly from the Deir ez-Zor Governorate and other eastern provinces, such as the Hasakah Governorate, by ISIL, YPG and the Syrian government due to fighting that took place there between 2011 and 2014.

In October 2019, the relatively obscure group garnered international attention after its fighters murdered Kurdish politician Hevrin Khalaf, which the UN described as a war crime.

[10][11] Ahrar al-Sharqiya is reported to have supported Turkish-led military offensives in eastern Syria against the Syrian Democratic Forces and Kurdish self-rule regions in northeastern Syria,[12] According to an unidentified activist in Afrin, Ahrar al-Sharqiya was among the Turkish-backed insurgent groups which volunteered to send fighters to Libya as part of a Turkish-led operation to aid the Tripoli-based Government of National Accord in December 2019.

[14] The group was announced by al-Nusra's former lead Sharia Judge in eastern Syria and Shura Council Member, Abu Maria al-Qahtani in 2016, who is originally from Iraq and has been supportive of Turkish involvement in the Syrian Civil War, whilst also being accused on multiple occasions of causing internal strife in al-Nusra, causing him to be later dismissed from his position in the group.

[26] In July 2018, Ahrar al-Sharqiya began a campaign in Afrin encouraging women to wear the hijab and loose clothing according Islamic law that included putting up posters and handing out fliers in the city.

[29][30] On 9 January 2019, the Gathering of the Eastern Martyrs which is affiliated with Ahrar al-Sharqiya claimed responsibility for an IED attack on an SDF humvee in the Deir ez-Zor Governorate.

However, after the clashes between Ahrar al-Sharqiya and Jaysh al-Islam, the two groups released a joint statement apologizing to each other for the violence and agreed to resolve disputes in court and avoid armed confrontations.