Hun Saroeun () is a Cambodian diplomat, currently serving as 7th Ambassador of Cambodia to Thailand since February 2023. He is the grandson of Senate President and former Prime Minister Hun Sen.
On 19 June 2025, Hun was summoned by Piyapak Sricharoen, Director-General of the Department of East Asian Affairs of the Thai Foreign Ministry to receive a letter of protest regarding the 18 June 2025 leak of a phone call between Thai Prime Minister Paetongtarn Shinawatra and Hun Sen.