Ayatollah Sayyid Riyadh al-Tabatabaei al-Hakim (Arabic: رياض الطباطبائي الحكيم; born January 18, 1958) is the eldest son of grand Ayatollah, Muhammad Saeed al-Hakim.

He is a member of the curriculums reviewing committee at the religious seminary in Qom.

He was arrested during Saddam's regime for more than eight years, he has written memorandums about the duration of arresting, he is a representative of his father, out of Iraq and supervises several offices of jurisprudence in several Asian and African countries.

He is the founder and supervisor of Kalima Center for Dialogue and Cooperation, he has participated in many social and cultural conferences and symposiums in many European, Asian countries and Australia.

He arranged and participated in many conferences and he receives ongoing delegations of researchers and investigators who are visiting Holy Najaf, he contributes to many cultural projects that prove humanitarian coexistence concept and culture exchanging.