Sayyid 'Abd al-Husayn Sharaf al-Din al-Musawi, also commonly spelled Abdel Hussein Sharafeddine or Sharafeddin, was a Shi'a Twelver Islamic scholar. He was born 1872 in Kadhimiya in the Ottoman Iraq to a Lebanese family of prominent religious scholars. At the age of 20 he went to Iraq in order to study at clerical seminaries in Samarra and Najaf, where he stayed for twelve years until he became a mujtahid (independent reasoning in legal issues) at the age of 32.