Phu Quoc Prison (Vietnamese: Nhà tù Phú Quốc also known as An Thoi POW Camp) was a military prison in Phú Quốc, southern Vietnam (today it is in Kiên Giang Province).

During the Vietnam War, it was used for the detention of captured Viet Cong and North Vietnamese soldiers.

[1]: 240 International Committee of the Red Cross (ICRC) teams visited Phu Quoc Prison in 1969[2] and 1972.

[3] The ICRC found that many POWs showed signs of inadequate food supplies, poor medical care and physical beatings.

It is ranked as a special historical relic of national significance by the government of Vietnam and is now a museum.