The 99 Names of Allah collection are 99 names of Allah, from The Quran. Which is Thé God, in Islam. While The Quran states "his names are all the finest" (20:8), (meaning this is not a definitive collection) they are often used for concentration on Allah.
They are: (in Arabic, Arabic In latin alphabet and english translation)
(الله) Allah (The Real One Reality God)
(العدل) Al 'Adl (The Just)
(العفو) Al 'Afuw (The Pardoner)
(الاحد) Al Ahad (The Nondivisible)
(الآخر) Al Akhir (The Final)
(العلي) Al Ali (The Most High)
(العليم) Al Alim (The Learned)
(الأول) Al Awwal (The First)
(العظيم) Al-Azim (The Greatest)
(العزيز) Al Aziz (The Most Mighty)
(البديع) Al Badi (The Introducer)
(الباعث) Al Ba'ith (The Ressurector)
(الباری) Al Bari (The Manifestor)
(البر) Al Barr (The Benevolent)
(البصير) Al Basir (The Percieving)
(الباسط) Al Basit (The Expander)
(الباطن) Al Batin (The Transcendental)
(ذو الجلال و الإكرام) Dhu al Jalal wa al Ikram (Having Majesty And Splendour)
(آل سورة فاطر) Al-Fatir (The Inventor)
(الفتاح) Al Fattah (The Judge)
(الغفار) Al Ghaffar (The Oft Forgiving)
(الغفور) Al Ghafur (The Most Forgiving)
(آل غالب) Al-Ghalib (The Victor)
(الغني) Al Ghani (The Bounteous)
(الهادي) Al Hadi (The Leading)
(الحفيظ) Al Hafiz (The Preserver)
(الحكم) Al Hakam (The Intercessor)
(الحكيم) Al Hakim (The Knowledgeable)
(الحليم) Al Halim (The Patient)
(الحميد) Al Hamid (The Praiseworthy)
(الحق) Al Haqq (The Sincere)
(الحسيب) Al Hasib (The Calculating)
(الحي) Al Hayy (The Eternal-living)
(الجبار) Al Jabbar (The Strongest)
(الجليل) Al Jalil (The Dignified)
(الجامع) Al Jami' (The Cumulator)
(الكبير) Al Kabir (The Grandest)
(الكريم) Al Karim (The Generous)
(الخبير) Al Khabir (The All-Aware)
(الخافض) Al Khafid (The Demeaning)
(الخالق) Al Khaliq (The Maker)
(اللطيف) Al Latif (The Kind)
(المجيد) Al Majid (The Glorious)
(الملك) Al Malik (The King)
(مالك الملك) Malik al Mulk (The Guardian Of Empowerment)
(المانع) Al Mani' (The Withhelding)
(المتين) Al Matin (The Steadfast)
(المولى) Al-Mawla (The Supporter)
(المؤخر) Al Mu'akhkhir (The Delayer)
(المبدئ) Al Mubdi (The Initiator)
(المغني) Al Mughni (The Blesser)
(المهيمن) Al Muhaimin (The Protector)
(المحصي) Al Muhsi (The Accounter)
(المحيي) Al Muhyi (The Lifegiver)
(المعيد) Al Mu'id (The Reinstater)
(المعز) Al Mu'izz (The Honorgiving)
(المجيب) Al Mujib (The Responsive)
(المؤمن) Al Mu'min (The Faithgiving)
(المميت) Al Mumit (The Deathbringer)
(المنتقم) Al Muntaqim (The Retaliator)
(المقدم) Al Muqaddim (The Promoter)
(المقيت) Al Muqit (The Coordinator)
(المقسط) Al Muqsit (The Equitable)
(المقتدر) Al Muqtadir (The Controller)
(المصور) Al Musawwir (The Proportioner)
(المتعالي) Al Muta'ali (The Supreme Highness)
(المتكبر) Al Mutakabbir (The Magnificent)
(ننصر) An-Nasir (Your Keeper)
(النور) An Nur (The Light)
(القابض) Al Qabid (The Straightener)
(القادر) Al Qadir (The Competent)
(القهار) Al Qahhar (The Subduer)
(آل القديم) Al-Qarib (The Near)
(القوي) Al Qawi (The Nontiring)
(القيوم) Al Qayum (The Self-Reliant)
(القدوس) Al Quddus (The Holiest)
(اررب) Ar-Rabb (The Boss)
(الرافع) Ar Rafi' (The Uplifting)
(الرحيم) Ar Rahim (The Highly Compassionate)
(الرحمٰن) Ar Rahman (The Beneficient)
(الرقيب) Ar Raqib (The Watchful)
(الرؤوف) Ar Ra'uf (The Considerate)
(الرزاق) Ar Razzaq (The Providing)
(الصبور) Al Sabur (The Forbearing, The Patient)
(السلام) As Salam (The Source Of Serenity)
(الصمد) As Samad (The Eternal)
(السميع) Al Sami (The Aware)
(الشهيد) Ash Shahid (The Watcher)
(الشكور) Ash Shakur (The Indebting)
(التواب) At Tawwaab (The Magnanimous)
(الودود) Al Wadud (The Affectionate)
(الوهاب) Al Wahhab (The Rewarder)
(الواحد) Al Wahid (The Singularity)
(الواجد) Al Wajid (The Considerer)
(الوكيل) Al Wakil (The Trustee)
(الولي) Al Wali (The Patron)
(الوارث) Al Waarith (The Succeder)
(الواسع) Al Wasi' (The Vast)
(الظاهر) Az Zahir (The Apparent)