Some names came from family members of detainees who have sent letters home through the International Committee of the Red Cross. Seventy-three people on the list have been sent back to their home countries for further detention or for release. They are marked with an "R." Several of those have been interviewed by reporters.
Many names came from two Web sites that monitor the status of Guantanamo detainees: the Arabic-language Alasra (www.alasra.org) and the Britain-based CagePrisoners (www.cageprisoners.com). Alasra lists 202 names and CagePrisoners about 330. The two sites, which advocate the release of the detainees, have published lists of names, photographs and documents provided by families. Alasra is registered to an unknown individual in Saudi Arabia, and CagePrisoners is registered to a group of Muslim computer programmers based in Britain. Sixty-two names came from an official publication of the Yemeni Defense Ministry in January, and the names of 58 Pakistanis were published by a Pakistani newspaper in October 2002. In that same month, al Qaeda supporters in Afghanistan distributed a list naming "57 al Qaeda members" who were prisoners at Guatanamo.
For three years, Washington Post researchers have been compiling the names and countries of origin of detainees from unofficial, public sources: news accounts, legal documents, interviews with attorneys and relatives, and information from detainee support sites on the Web. The Post is printing only names that it has verified from a single reputable source or multiple sources. Some names have been transliterated from Arabic or have alternative spellings.
| Name | Nationality | Released |
| Aamer, Shaker Abdur-Raheem 122 | Saudi Arabia | |
| Abasin, Said 216, 90 | Afghanistan | R |
| Abbas, Muhammad 190 | Pakistan | |
| Abbasi, Feroz 221, 215 | UK | |
| Abd, Allah Ab Aljalil Abdal Rahman 122 | Yemen | |
| Abderrahmane, Slimane Hadj 214 | Denmark | R |
| Abdoh AKA Al Hag, Atag Ali 214 | Yemen | R |
| Abdul Rahman, Wesam 214 | Jordan | R |
| Abdullah, Abu 188 | Algeria | |
| Abdullah, Ahmad 121 | Morocco | |
| Abdullah, Jamal 138, 121 | Uganda | |
| Abdullah, Noorudeen 121 | Morocco | |
| Abdulraheem, Othman 3 | Yemen | |
| Abdulsalam, Reswan 215, 196 | Morocco | |
| Agha, Ismail 104 | Afghanistan | R |
| Ahmad, Ali 148 | Pakistan | R |
| Ahmad, Ejaz 190 | Pakistan | |
| Ahmad, Rashid Hasan 117 | Sudan | R |
| Ahmed, Hamed Abderrahman 215, 189 | Spain | R |
| Ahmed, Faluvi Abdullah 190 | Yemen | |
| Ahmed, Faruq Ali 190 | Yemen | |
| Ahmed, Ruhal 215 | UK | R |
| Ahmed, Sarfaraz 190 | Pakistan | |
| Ait Idir, Mustapha 206, 91 | Algeria | |
| Akhmyarov, Rustam 179 | Russia | R |
| Al Adahi, Mohamed 3 | Yemen | |
| Al Ajmi, Abdullah Saleh Ali 204, 5 | Kuwait | |
| Al Anazi, Abdullah 112 | Saudi Arabia | |
| Al Areeni, Khalid 15 | Saudi Arabia | |
| Al Asadi, Mohamed Ahmed 3 | Yemen | |
| Al Aseemi, Fahd Sultan Ubaid 121 | Saudi Arabia | |
| Al Askari, Mohsin Ali 3 | Yemen | |
| Al Asmar, Khalid 88 | Jordan | |
| Al Assani, Fahmi Salem 3 | Yemen | |
| Al Azmi, Saad Madai Saad 204 | Kuwait | |
| Al Azraq, Majid Hamoud 3 | Yemen | |
| Al Baasi, Mohsin Abdullah 3 | Yemen | |
| Al Badaah, Abdul Aziz bin Abdur Rahman 121 | Saudi Arabia | |
| Al Bahlul, Ali Hamza Ahmed Sulayman 129 | Yemen | |
| Al Bahooth, Ziyad bin Salih bin Muhammad 121 | Saudi Arabia | |
| Al Baidhani, Abdulkhaliq 3 | Yemen | |
| Al Banna, Jamil 95, 102 | Jordan | |
| Al Barakati, Khalid 120 | Saudi Arabia | |
| Al Blooshi, Salah Abdul Rasool 141 | Bahrain | |
| Al Busayss, Adil Said Al Haj Obeid 141 | Yemen | |
| Al Darbi, Ahmed 3, 228 | Yemen | |
| Al Dhabbi, Khalid Mohamed Saleh 3 | Yemen | |
| Al Dhabi, Salah Mohamed Saleh 3 | Yemen | |
| Al Dihani, Mohammed Funaitel 204, 5 | Kuwait | |
| Al Dini, Omar Saeed 3 | Yemen | |
| Al Dossary, Juma Mohammed 141 | Bahrain | |
| Al Fawzan, Fahd Fawzan 121 | Saudi Arabia | |
| Al Fifi, Jaber 121 | Saudi Arabia | |
| Al Fouzan, Fahd 110 | Saudi Arabia | |
| Al Ghaith, Abdurahman ba 3 | Yemen | |
| Al Ghamdi, Abdur Rahman Uthman 121 | Saudi Arabia | |
| Al Ghamdi, Khalaf Awad 121 | Saudi Arabia | |
| Al Ghamdi, Saeed Farhah 121 | Saudi Arabia | |
| Al Ghamdi, Zaid 121 | Saudi Arabia | |
| Al Ghanimi, Abdullah Muhammad Salih 121 | Saudi Arabia | |
| Al Habardi, Mane Shaman 121 | Saudi Arabia | |
| Al Habashi, Raafat 3 | Yemen | |
| Al Haj, Sarqawi 3 | Yemen | |
| Al Hamd, Adel Saleh 3, 228 | Yemen | |
| Al Harbi, Ibrahim Daifullah 121 | Saudi Arabia | |
| Al Harbi, Tariq 121 | Saudi Arabia | |
| Al Hassan, Sameer Naji 3 | Yemen | |
| Al Ilmi, Muhammad 121 | Morocco | |
| Al Jowfi, Rashid 121 | Saudi Arabia | |
| Al Juaid, Rami Sad 121 | Saudi Arabia | |
| Al Judaan, Hamood 121 | Saudi Arabia | |
| Al Juhani, Badr 121 | Saudi Arabia | |
| Al Juhdali, Ziyad 121 | Saudi Arabia | |
| Al Jutaili, Fahd bin Salih bin Sulaiman 121 | Saudi Arabia | |
| Al Kaabi, Jamil Ali 154, 121 | Saudi Arabia | |
| Al Kandari, Abdullah kamel bin Abdullah Kamal 204, 5 | Kuwait | |
| Al Kandari, Fayiz Mohammed Ahmed 204, 5 | Kuwait | |
| Al Kazimi, Ali Nasser 3, 228 | Yemen | |
| Al Khalafi or Khalaqi, Asim 121 | Saudi Arabia | |
| Al Khalidi, Sulaiman 121 | Saudi Arabia | |
| Al Khalifa, Shaikh Salman bin Ebrahim 141, 98 | Bahrain | |
| Al Khowlani, Idrees 121 | Saudi Arabia | |
| Al Kouri, Farouq Ahmed 3, 228 | Yemen | |
| Al Maaliki, Sad 121 | Saudi Arabia | |
| Al Mahdi, Ali Yahya Mahdi 121 | Yemen | |
| Al Madhoni, Musaab 3 | Yemen | |
| Al Marrah, Khalid 121 | Saudi Arabia | |
| Al Marri, Jarallah 121 | Qatar | |
| Al Marwallah, Bishir Naser Ali 121 | Yemen | |
| Al Matari, Fahd Al Haimi 3, 228 | Yemen | |
| Al Matrafi, Abdullah 4 | Saudi Arabia | |
| Al Merbati, Isa 141, 121 | Bahrain | |
| Al Mosleh, Abdullah Hamid 121 | Saudi Arabia | |
| Al Muhajiri, Abdulmajeed 3, 228 | Yemen | |
| Al Muhammad, Mahmood 3, 228 | Syria | |
| Al Mujahid, Mahmoud Abdulaziz 3 | Yemen | |
| Al Muraqi, Khalid bin Abdullah 121 | Saudi Arabia | |
| Al Musa, Abdul Wahab 224, 224 | Saudi Arabia | |
| Al Mutairi, Khalid Abdullah Mishal 204, 5 | Kuwait | |
| Al Mutairi, Nasser Nijer Naser 204, 5 | Kuwait | |
| Al Naimi, Abdulla Majid 141 | Bahrain | |
| Al Nasir, Ibrahim Muhammad 121 | Saudi Arabia | |
| Al Nukhailan, Naif 121 | Saudi Arabia | |
| Al Nur, Anwar Hamdan 224 | Saudi Arabia | |
| Al Nusairi, Adil Uqla Hasan 121 | Saudi Arabia | |
| Al Odah, Fawzi Khalid Abdullah Fahad 204, 5 | Kuwait | |
| Al Omar, Wasm Awad Al Wasm 121 | Saudi Arabia | |
| Al Omari, Musa bin Ali bin Saeed 121 | Saudi Arabia | |
| Al Otaiba, Bandar 121 | Saudi Arabia | |
| Al Owshan, Abdul Aziz Sad 121 | Saudi Arabia | |
| Al Owshan, Saleh bin Abdullah 121 | Saudi Arabia | |
| Al Owshan, Sulieman 121 | Saudi Arabia | |
| Al Qaaid, Rashid 121 | Saudi Arabia | |
| Al Qadasi, Khalid Massah 3 | Yemen | |
| Al Qadasi, Walid 3 | Yemen | R |
| Al Qahtani, Abdullah Hamid al Muslih 226 | Saudi Arabia | |
| Al Qahtani, Jaber Hasan 13, 24 | Saudi Arabia | |
| Al Qahtani, Mohamed 115 | Saudi Arabia | |
| Al Qahtani, Sad 121 | Saudi Arabia | |
| Al Qosi, Ibrahim Ahmed Mahmoud 129 | Sudan | |
| Al Qurashi, Muhammad Abdur-Rahman Abid 121 | Saudi Arabia | |
| Al Rabahi, Abdullah Ameen 3, 228 | Yemen | |
| Al Rabeesh, Yusuf 121 | Saudi Arabia | |
| Al Rabiah, Fwad Mahmoud 204, 5 | Kuwait | |
| Al Rahabi, Abdulmalik Abdulwahhab 3, 228 | Yemen | |
| Al Raimi, Ali Yahya Mahdi 3 | Yemen | |
| Al Raimi, Ismail Ali 3 | Yemen | |
| Al Rawi, Bisher 95, 123 | Iraq | |
| Al Razehi, Ali Ahmed Muhammad 95, 123 | Yemen | |
| Al Salami, Ali Abdullah 3, 228 | Yemen | |
| Al Salami, Saleh Abdullah 3 | Yemen | |
| Al Samh, Adil Abu 3, 228 | Yemen | |
| Al Sarim, Saeed Ahmed 3 | Yemen | |
| Al Sayegh, Adnan Muhammad Ali 200 | Saudi Arabia | |
| Al Shabani, Fahd Abdullah 121 | Saudi Arabia | |
| Al Shahrani, Muhammad bin Abdur Rahman 121 | Saudi Arabia | |
| Al Shaibani, Bandar 121 | Saudi Arabia | |
| Al Shamiri, Mustafa 3 | Yemen | |
| Al Shammari, Abdulaziz SayerOwain 204, 5 | Kuwait | |
| Al Shammari, Majid Afas Radi Al Tumi 121 | Saudi Arabia | |
| Al Shammari, Zain 121 | Saudi Arabia | |
| Al Shamri, Anwar Hamdan al Noor 121 | Saudi Arabia | |
| Al Shaqoori, Usamah 121 | Morocco | |
| Al Shaqoori, Yunus 121 | Morocco | |
| Al Shareef, Fahd Umar 121 | Saudi Arabia | |
| Al Shareef, Sultan 121 | Saudi Arabia | |
| Al Sharikh, Abdul Hadi 121 | Saudi Arabia | |
| Al Sharikh, Abdur Razaq 121 | Saudi Arabia | |
| Al Shehri, Abdus Salam Ghaithan 121 | Saudi Arabia | |
| Al Shehri, Saeed Ali Jabir ale Khuthaim 121 | Saudi Arabia | |
| Al Shehri, Salim 121 | Saudi Arabia | |
| Al Shehri, Yusuf Muhammad 121 | Saudi Arabia | |
| Al Siblie, Abdullah Yahya Yousuf 3, 228 | Yemen | |
| Al Suwaidi, Abdulaziz 3, 228 | Yemen | |
| Al Towlaqi, Fahmi 3, 228 | Yemen | |
| Al Umar, Ibrahim bin Umar 121 | Saudi Arabia | |
| Al Unzi, Abdullah Thani Faris Al Sulami 226 | Saudi Arabia | |
| Al Unzi, Khalid 121 | Saudi Arabia | |
| Al Unzi, Rakan 121 | Saudi Arabia | |
| Al Unzi, Sultan Sari Saail 121 | Saudi Arabia | |
| Al Utaibi, Bajad bin Daifillah 121 | Saudi Arabia | |
| Al Utaibi, Bandar 224 | Saudi Arabia | |
| Al Utaibi, Muhammad Suroor 121 | Saudi Arabia | |
| Al Utaibi, Naif Fahd Al Aseemi 121 | Saudi Arabia | |
| Al Warifi, Mukhtaar 3 | Yemen | |
| Al Yafii, Al Khadir Abdullah 3, 228 | Yemen | |
| Al Zahrani, Khalid 121 | Saudi Arabia | |
| Al Zahrani, Sad Ibrahim Ramzi al-Jundubi 121 | Saudi Arabia | |
| Al Zahrani, Yasser Talal 121 | Saudi Arabia | |
| Al Zamil, Adil Zamil Abdull Mohssin 204, 5 | Kuwait | |
| Al Zuhairi, Ahmed Zaid 3, 228 | Yemen | |
| Al-Harith, Jamal Udeen 215 | United Kingdom | R |
| Ali, Abu Sana 121 | Morocco | |
| Ali, Sahibzada Usman 118, 146 | Afghanistan | R |
| Ali, Sarfraz 190 | Pakistan | |
| Ali, Syed Saim 190 | Pakistan | |
| Amin, Aminullah 190 | Pakistan | |
| Amin, Omar Rajab 204, 5 | Kuwait | |
| Amro, Jalal Salem bin 3 | Yemen | |
| Anaam, Suhail Abdo 3 | Yemen | |
| Ansar, Muhammad 148, 146 | Pakistan | R |
| Anwar, Muhammad 190 | Pakistan | |
| Aouzar, Mohamed 157 | Morocco | |
| Aqeel, Sulaiman bin 3 | Yemen | |
| Arbaish, Khalid bin Suleiman 220 | UNKNOWN | |
| Aseeri, Turki Mashawi Zayid Ale Jabali 121 | Saudi Arabia | |
| Ashraf, Muhammad 190 | Pakistan | |
| Aslam, Noor 127 | Afghanistan | R |
| Asnar, Khalid 155 | Jordan | |
| Ayub, Haseeb 190 | Pakistan | |
| Azzam, Hussein 155 | Jordan | |