Son Chhay (Khmer: សុន ឆ័យ; born January 1, 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. This was followed by a Diploma in Education from Adelaide University in 1985. Son Chhay was first elected to parliament in 1993 representing his birth province of Siem Reap and reelected in 1998 in the same province.