Billah is an Arabic phrase meaning with God or through God. It is used within various standard sayings such as the Hawqala and the Ta'awwudh

Ta'awwudh

The Ta`awwudh is the phrase A`ūdhu billāhi min ash-shaitāni r-rajīmi . This is an Arabic sentence meaning "I seek refuge in Allah from Shaitan, the accursed one." It is often recited by Muslims before reciting the Qur'an and before beginning a task. It is often followed by the Basmala....

. It is also used within personal names and titles, particularly by Caliphs and other rulers, when it might be seen as a counterpart of the Christian usage by the grace of God

By the Grace of God

By the Grace of God is an introductory part of the full styles of a monarch taken to be ruling by divine right, not a title in its own right....

. It is used for example as follows:

• al-Aziz Billah , mighty through God
  • Abu Mansoor Nizar al-Aziz Billah
    Abu Mansoor Nizar al-Aziz Billah
    Al-Aziz was the fifth Caliph of the Fatimids .- History :Since Abdallah, the heir to the throne, had died before his father Ma'ad al-Muizz Li-Deenillah , his brother Abu Mansur Nizar al-Azizbillah acceded to the Caliphate with the help of Jawhar as-Siqilli...
    
     (955–996), fifth Caliph of the Fatimids
• Baqi Billah , everlasting through God
  • Khwaja Baqi Billah
    Khwaja Baqi Billah
    Khwaja Baqi Billah was a Sufi saint from Kabul.Khawaja Baqi Billah was the originator and pioneer of the Naqshbandia Order in the sub-continent. His name was Razi-ud-Din Muhammad Baqi but he was commonly known as Khwaja Baqi Billah His father Qazi Abdul Salam Khilgi, Samarkandi Qureshi was a...
    
     (1563–1603), Sufi saint from Kabul
• al-Mahdi Billah , rightly guided through God
  • Ubayd Allah al-Mahdi Billah
    Ubayd Allah al-Mahdi Billah
    Abdullah al-Mahdi Billah , often referred to as Ubayd Allah, is the founder of the Fatimid dynasty, the only major Shi'a caliphate in Islam, and established Fatimid rule throughout much of North Africa.- History :...
    
     (ruled 909-934), founder of the Fatimid dynasty
• Al-Muhtadi Billah , rightly guided through God
  • Al-Muhtadee Billah (born 1974), heir to the Sultan of Brunei
• Al-Muktafi Billah , contented through God
  • one of the names of Mahmud of Terengganu (born 1930), Sultan of Terengganu
  • one of the names of Mizan Zainal Abidin of Terengganu (born 1962), Yang di-Pertuan Agong of Malaysia
• Al-Musta'in Billah , one who asks for help through God
  • Al-Musta'in (Cairo)
    Al-Musta'in (Cairo)
    Al-Musta'in Billah was the tenth Abbasid "shadow" caliph of Cairo, reigning under the tutelage of the Mamluk sultans from 1406 to 1414. He was the only Cairo-based Abbasid caliph to hold political power as Sultan of Egypt, albeit for only six months in 1412...
    
    , (c. 1390-1430), Abbasid "shadow" caliph
• al-Mustansir Billah , one who asks for help through God
  • Ma'ad al-Mustansir Billah ‎ (1029–1094), Fatimid Caliph
• Al-Musta'sim Billah , he who holds fast though God
  • Al-Musta'sim
    Al-Musta'sim
    Al-Musta'sim Billah was the last Abbasid Caliph in Baghdad; he ruled from 1242 until his death.-Biography:...
    
     Billah, (1213–1258), last Abbasid Caliph in Baghdad
• Mutasim Billah , abstaining from sin through God
  • one of the titles of Abu Bakar of Pahang (1904–1974), Sultna of Pahang, Malaysia
  • Moatassem Billah Gaddafi, son of Libyan leader Muammar al-Gaddafi
  • Motasim Billah Mazhabi
    Motasim Billah Mazhabi
    Motasim Billah Mazhabi is a citizen of Afghanistan who was a candidate in Afghanistan's 2009 Presidential elections.-Academic career:Mutasimbillah is from a family of religious scholars, and received religious instruction from his father Maulana Mohammad Ataullah Faizani and his uncle Maulana Gul...
    
     (born 1964), Afghan politician
• al-Mutazz Billah , powerful through God
  • Moataz Billah al Mqearhi
    Moataz Billah al Mqearhi
    Moataz Billah Megeirhi is a Libyan footballer. He currently plays for Ahly Benghazi in the Libyan Premier League.- References :...
    
     (born 1984), Libyan footballer
• Al-Qahir Billah , victorious through God
  • Al-Qahir
    Al-Qahir
    Al-Qahir bi'llah Abu Mansour Muhammad Al Qahir Bellah was the 19th Abbasid Caliph in Baghdad from 932 to 934. He was born 286 Hijri and 899 C.E...
    
    bi'llah (899-950), Abbasid Caliph in Baghdad