Billah () is an Arabic phrase meaning with God or through God. It is used in various standard sayings, such as the Hawqala and the Ta'awwudh. It is also often used as a component of compound personal proper names, particularly as regnal names by caliphs and other rulers when it might be seen as a counterpart of the Christian usage by the grace of God. It is used for example as follows:

Al-Aziz Billah (), mighty through God

• Al-Aziz Billah (955–996), fifth Fatimid Caliph

Baqi Billah (), everlasting through God

• Khwaja Baqi Billah (1563–1603), Sufi saint from Kabul

Al-Mahdi Billah (), rightly guided through God

• Muhammad al-Mahdi Billah (744 or 745 – 785), third Abbasid Caliph of Baghdad

• Abd Allah al-Mahdi Billah (873–934), founder of the Fatimid dynasty

• Muhammad II al-Mahdi Billah (976–1010), fourth Umayyad Caliph of Córdoba

Al-Mansur Billah (), he who is victorious through God

• Al-Mansur Billah (914–957), third Fatimid Caliph

• one of the names of Muhammad al-Badr (1926–1996), King and Imam of Yemen

Al-Muhtadi Billah (), rightly guided through God

• Al-Muhtadi Billah (died 870), fourteenth Abbasid Caliph of Baghdad

• Al-Muhtadee Billah (born 1974), heir to the Sultan of Brunei

Al-Muktafi Billah (), contented with God alone

• Al-Muktafi Billah (877/78 – 908), seventeenth Abbasid Caliph of Baghdad

• one of the names of Mahmud of Terengganu (1930–1998), Sultan of Terengganu, Malaysia

Al-Muntasir Billah (), he who triumphs in God

• Al-Muntasir Billah (837–862), eleventh Abbasid Caliph of Baghdad

Al-Mustafa Billah (), one who is chosen through God

• one of the names of Abdullah of Pahang (born 1959), Yang di-Pertuan Agong of Malaysia

Al-Musta'in Billah (), one who asks for help through God

• Ahmad al-Musta'in Billah (836–866), twelfth Abbasid Caliph of Baghdad

• Sulayman al-Musta'in Billah (965–1016), fifth Umayyad Caliph of Córdoba

• Abbas al-Musta'in Billah (1390–1430), tenth Abbasid Caliph of Cairo.

• one of the names of Ahmad Shah of Pahang (1930–2019), Sultan of Pahang, Malaysia

Al-Mustakfi Billah (), desirous of being satisfied with God alone

• Al-Mustakfi Billah (905–949), twenty-second Abbasid Caliph of Baghdad

• Muhammad III al-Mustakfi Billah (976–1025), tenth Umayyad Caliph of Córdoba

• Al-Mustakfi Billah I (1285–1340), third Abbasid Caliph of Cairo

• Al-Mustakfi Billah II (1388–1451), twelfth Abbasid Caliph of Cairo

Al-Musta'li Billah (), exalted through God

• Al-Musta'li Billah (1074–1101), ninth Fatimid Caliph

Al-Mustamsik Billah (), one who restrains himself through God

• Al-Mustamsik Billah (died 1521), sixteenth Abbasid Caliph of Cairo

Al-Mustanjid Billah (), one who implores for help through God

• Yusuf al-Mustanjid Billah (1124–1170), thirty-second Abbasid Caliph of Baghdad

• Yusuf al-Mustanjid Billah (died 1479), fourteenth Abbasid Caliph of Cairo

Al-Mustansir Billah (), one who asks for victory through God

• Al-Hakam II al-Mustansir Billah (915–976), first Umayyad Caliph of Córdoba

• Al-Mustansir Billah (1029–1094), eighth Fatimid Caliph

• Abu Ja'far al-Mustansir Billah (1192–1242), thirty-sixth Abbasid Caliph of Baghdad

• Ahmad al-Mustansir Billah (died 1261), first Abbasid Caliph of Cairo

• Ali Shah al-Mustansir Billah (died 1480), thirty-second Nizari Isma'ili Imam

• Gharib Mirza al-Mustansir Billah (died 1498), thirty-fourth Nizari Isma'ili Imam

Al-Mustarshid Billah (), one who seeks direction through God

• Al-Mustarshid Billah (1092–1135), twenty-ninth Abbasid Caliph of Baghdad

Al-Musta'sim Billah (), he who holds fast through God

• Abd Allah al-Musta'sim Billah (1213–1258), last Abbasid Caliph of Baghdad

• Zakariya al-Musta'sim Billah (died 1389), eighth Abbasid Caliph of Cairo

Al-Mustazhir Billah (), one who knows by heart through God

• Abd al-Rahman V al-Mustazhir Billah (1001–1024), ninth Umayyad Caliph of Córdoba

• Al-Mustazhir Billah (1078–1118), twenty-eighth Abbasid Caliph of Baghdad

Al-Mu'tadid Billah (), seeking support in God

• Al-Mu'tadid Billah (853/4 or 860/1 – 902), sixteenth Abbasid Caliph of Baghdad

• Al-Mu'tadid Billah I (died 1362), sixth Abbasid Caliph of Cairo

• Al-Mu'tadid Billah II (died 1441), eleventh Abbasid Caliph of Cairo

Al-Mu'tasim Billah (), abstaining from sin through God

• Al-Mu'tasim Billah (796–842), eighth Abbasid Caliph of Baghdad

• one of the names of [[Abdullah al-Mutassim Billah Shah of Pahang]] (1874–1932), Sultan of Pahang, Malaysia

• one of the names of [[Abdul Aziz al-Mutasim Billah Shah of Perak]] (1887–1948), Sultan of Perak, Malaysia

• one of the names of Abdul Halim of Kedah (1927–2017), Sultan of Kedah, Malaysia

• Proper given name of Mutassim Gaddafi, son of Libyan leader Muammar Gaddafi

• Motasim Billah Mazhabi (born 1964), Afghan politician

• Qazi Mu'tasim Billah (1933–2013), Bangladeshi Islamic scholar and teacher

Al-Mu'tazz Billah (), he who is strengthened by God

• Al-Mu'tazz Billah (847–869), thirteenth Abbasid Caliph of Baghdad

Al-Muqtadir Billah (), mighty through God

• Al-Muqtadir Billah (895–932), eighteenth Abbasid Caliph of Baghdad

Al-Qadir Billah (), powerful through God

• Al-Qadir Billah (947–1031), twenty-fifth Abbasid Caliph of Baghdad

Al-Qahir Billah (), victorious through God

• Al-Qahir Billah (899–950), nineteenth Abbasid Caliph of Baghdad

Al-Radi Billah (), content with God

• Al-Radi Billah (909–940), twentieth Abbasid Caliph of Baghdad

Al-Rashid Billah (), rightly guided through God

• Al-Rashid Billah (1109–1138), thirtieth Abbasid Caliph of Baghdad

Al-Wathiq Billah (), he who holds trust through God

• Al-Wathiq Billah (812–847), ninth Abbasid Caliph of Baghdad

• Al-Wathiq Billah I (died 1341), fourth Abbasid Caliph of Cairo

• Al-Wathiq Billah II (died 1386), ninth Abbasid Caliph of Cairo

• one of the names of Taimur bin Feisal (1886–1965), Sultan of Oman

• one of the names of Mizan Zainal Abidin of Terengganu (born 1962), Sultan of Terengganu, Malaysia

References