Ayatollah Sayed Mohammed Baqir (or Bakr) al-Hakim (1939 - August 29, 2003) was the foremost Shia Muslim leader in Iraq until his assassination in a terrorist bombing that killed him and 80 others as they were leaving a mosque in Najaf. He was the son of Ayatollah Muhsin Al-Hakim, the worldwide leader of Shia Muslims from 1955 to 1970.