Grand Ayatollah Sayyid Muhammad Saeed al-Tabataba'i al-Hakim (Arabic: ??? ???? ?????? ????? ???? ???? ?????????? ???????) (born 1 February 1934) is an senior Iraqi Twelver Shi'a marja, one of the Big Four Grand Ayatollahs of the Hawza of Najaf and one of the most senior Shia clerics in Iraq after Ayatollah Ali al-Sistani.