About 60 more foreign prisoners are eligible for transfer from the facility, the US defence department said.
Discussions with various countries on repatriating the prisoners were ongoing, it said.
In September the US transferred 16 Saudis from Guantanamo back to their home kingdom.
About 136 of the 759 people detained at Guantanamo since 2002 have been Saudi, the second-largest group after Afghans. Most have since been repatriated.
Those who were returned to Saudi Arabia have received financial help from the government to rebuild their lives and many have been allowed to go free.
Washington has designated Guantanamo prisoners, who were mainly seized in Afghanistan during the US-led invasion in 2001, as "enemy combatants".
The definition has resulted in the men being denied the "prisoner of war" status that would guarantee them certain rights under international law.