Khaled Abdulaziz Al-Duwaisan (born 15 August 1947) is a Kuwaiti diplomat and the previous ambassador to the United Kingdom, a role he has held since 1993.

In London, Al-Duwaisan is Dean of the Diplomatic Corps as the longest-serving ambassador to the United Kingdom.

[1] In 1995, Queen Elizabeth II appointed Al-Duwaisan an Honorary Knight Grand Cross of the Royal Victorian Order (GCVO).

In 2012, he received an Honorary DCL degree from the University of East Anglia.

[5] A doctoral fellowship named after Al-Duwaisan at Durham University's Ustinov College is awarded annually to postgraduate students focused on international and regional politics and security.