The Al-‘Abbās Mosque or Masjid al-‘Abbās (Arabic: مسجد الامام العباس‎) is the mausoleum of ‘Abbās ibn ‘Alī, located across from the Imām Husayn Mosque in Karbalā, Iraq. ‘Abbās was the brother Hasan and Husayn, and was the flag-bearer for Husayn in the Battle of Karbalā. The distance between the shrines of ‘Abbās and Husayn, are the same as the distance between the hills of Al-Safa and Al-Marwah.