Al ‘Askarī Shrine or the ‘Askariyya Shrine (Arabic: مرقد الامامين علي الهادي والحسن العسكري‎, translit. aas‎ Marqad al-Imāmayn ‘Alī l-Hādī wa l-Ħassan al-‘Askarī) is a Shī‘ah Muslim holy site in the Iraqi city of Sāmarrā 125 km (78 mi) from Baghdad. It is one of the most important Shī‘ah Shrines in the world, built in 944. Adjacent to the shrine is a mosque, which is called Al-Askari Mosque. The dome of the Shrine was destroyed in a bombing by extremists in February 2006 and its two remaining minarets were destroyed in another bombing in June 2007, causing widespread anger amongst Shī‘ah Muslims. The remaining clock tower was also destroyed in July 2007. The dome and minarets were repaired and the mosque reopened in April 2009.

The remains of the 10th and 11th Shī‘ah Imāms, ‘Alī al-Hādī ("an-Naqī") and his son Hasan al-‘Askarī, known as: al-‘Askariyyain ("the two ‘Askarīs"), rest at the shrine.[4] Also buried within the Mosque are: Hakimah Khātūn, sister of ‘Alī al-Hādī; and Narjis Khātūn, the mother of Muħammad al-Mahdī.[5] Adjacent to this shrine is another mosque, built over the location where the Twelfth or "Hidden" Imām, Muħammad al-Mahdī first entered the Minor Occultation.

The ‘Askariyya Shrine is also known as the "Tomb or Mausoleum of the Two Imāms", "the Tomb of Imāms ‘Alī al-Hādī and Hasan al-‘Askarī" and "al-Hadhratu l-‘Askariyya".

Time magazine reported at the time of the 2006 bombing that:

al-Askari [is] one of Shi'ite Islam's holiest sites, exceeded in veneration only by the shrines of Najaf and Karbala. Even Samarra's Sunnis hold al-Askari in high esteem. The expression 'to swear by the shrine' is routinely used by both communities".