''al-Abbas Brigade''), is a Syrian[12] Twelver Shia Muslim militia that fought for Ba'athist Syria prior to the collapse of the Assad regime.

The group was formed in late 2012 to defend the Sayyidah Zaynab Mosque and other Shia holy sites in Syria.

[15] In May and June 2013, Reuters reported a split had developed within the brigade over finances and leadership which led to violence.

[17] As the Islamic State in Iraq and the Levant made significant gains in Iraq in mid-2014, many its Iraqi members returned home to defend the faltering government in Baghdad.

[18] The al-Abbas Bridge took part in the 2018 Southern Syria offensive in support of government troops.