Riyad H. Mansour (born 21 May 1947) is a Palestinian-American diplomat and since 2005 has been the Permanent Observer of Palestine to the United Nations.

[1] In 2005, President of the Palestinian National Authority Mahmoud Abbas appointed him to succeed Nasser al-Qudwa as Permanent Observer for Palestine to the UN.

[6] Mansour's father moved to the United States in the 1950s as a refugee and became a steelworker in Ohio.

The refugee family lived in Ramallah, Occupied West Bank.

[8] In 2002, Mansour served as an adjunct professor in the Political Science Department at the University of Central Florida.