Mohamed Haytham Khayat (Arabic: محمد هيثم الخيَّاط) (1937 – 5 September 2020) was a Syrian physician and lexicographer.

[1] He was a senior policy advisor to the World Health Organization Regional Directory for the Eastern Mediterranean,[2] a member of both the Board of Trustees of the International Union of Muslim Scholars, and the Board of Trustees of the Islamic Organization for Medical Sciences.

[1] He has published more than 25 books on medicine, health, chemistry, botany, Arabic language, and Islamic ethics in Arabic, French and English, including some dictionaries.

He has also published hundreds of articles in Arabic, French, English, German and Italian in various fields.

[5] This biographical article related to medicine in Syria is a stub.