Abdullah Yusuf Ali, (Urdu: عبداللہ یوسف علی‎‎; 14 April 1872 – 10 December 1953) was a British-Indian barrister and scholar who wrote a number of books about Islam and whose translation of the Qur'an into English is one of the most widely known and used in the English-speaking world. He died in London in 1953.

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.