Son Chhay (Khmer: សុន ឆ័យ; born 1 January 1956) is a Cambodian politician, and one of the highest-ranking members of the Cambodia National Rescue Party.

Son Chhay graduated in 1984 from Flinders University in Australia with a bachelor's degree in Mathematical Science.

From 2003 to the present he is a member of parliament representing Phnom Penh in the National Assembly of Cambodia.

Son Chhay is well respected for his tireless effort to fight against corruption, promoting liberal democracy and human rights [2] On 14 June 2010, Son Chhay was awarded the Order of Australia award for his services to Cambodia and the Cambodian Australian community in Australia.

[citation needed] He is currently married to Christina Son and has 3 children.