Sarin Chhak (Khmer: សារិន ឆាក; 2 January 1922 – 1979) was a Cambodian statesman and diplomat who served as Minister of Foreign Affairs from 1975 to 1976. He died in 1979 in Vietnamese custody following the Vietnamese invasion of Cambodia.^[1]

He was an expert in borders. He graduated with a PhD from the University of Paris in 1966 with his thesis titled Les frontières du Cambodge (The Borders of Cambodia).^[2]