Jaʽfar

• Ja'far ibn Abi Talib (died 629), companion of Muhammad, older brother of Ali
• Jafar ibn Ali, son of Ali and Umm ul-Banin
• Ja'far al-Sadiq (702–765), descendant of Ali, sixth imam of Shia Islam
• Ja'far ibn Abdallah al-Mansur, (743–767) was the elder son of caliph al-Mansur.
• Ja'far ibn Yahya (767–803), one of the Barmakids, vizier of Caliph Harun al-Rashid
• Ja'far al-Mutawakkil (r. 847–861), the tenth Abbasid caliph
• Abu Ma'shar Jaʿfar ibn Muhammad al-Balkhi (787–886), Persian scholar
• Mir Jafar (1691–1765), military commander who betrayed the Nawab of Bengal Siraj ud-Daulah
• Mir Jafar Dasni (died 841), a rebel, who rebelled against Abbasid caliph al-Mu'tasim
• Ja'far ibn Mansur al-Yaman (fl. 10th century), Ismaili theologian
• Ja'far ibn Fallah (died 971), Kutama Berber general of the Fatimids
• Ja'far ibn al-Furat (921–1001), Ikhshidid and Fatimid vizier
• Jafar ibn Ali al-Hadi (c.840-c.885), son of the tenth imam of Twelver Shia Islam, Ali al-Hadi,anda founder of the Ja'fariyya sect
• Ja'far ibn Muhammad al-Hasani (died 876/7), first Sharif of Mecca
• Ja'far al-Mufawwid, Abbasid prince and heir-apparent of Caliph al-Mu'tamid
• Ja'far al-Muqtadir (895-832), the eighteenth Abbasid caliph
• Jafar Tabrizi (also known as Farīd al-Dīn and Qeblat al-Kottāb), 15th century master in calligraphy as well as a poet and scribe
• Ja'far ibn Sa'id (died 1764/5), Sharif of Mecca
• Jafar Khan (died 1789), King of Persia

• Ja'afar Mahmud Adam (1960-2007),Islamic scholar
• Jafar Alam, Bangladeshi politician and Member of Parliament
• Jafar Alizadeh (born 1956), Iranian wrestler
• Jafar Arias (born 1995), Curaçaoan footballer
• Jafar al-Askari (1887–1936), prime minister of Iraq
• Jafar Bazri, (born 1987), Iranian footballer
• Jafar Bolhari (born 1948), Iranian psychiatrist
• Jafar Ebrahimi, Iranian poet
• Jafar al-Hakim (born 1965), Shiite Ayatollah in Najaf, Iraq
• Jafar Iqbal, Bangladeshi footballer
• Jafar Irismetov (born 1976), Uzbekistan footballer and coach
• Jafar Jabbarli (1899–1934), Azerbaijani playwright, poet, director and screenwriter
• Jafar Dhia Jafar (born 1943), Iraqi nuclear physicist
• Jafar Khan Jamali (1911–1967), Indian politician, tribal chief and an All-India Muslim League veteran from Balochistan
• Jafar Kazemi, Iranian political prisoner sentenced to death and hanged for co-operation with the Iranian opposition group PMOI
• Jafar Khan (died 1789), shah of Persia (1785–1789)
• Jafar Mokhtarifar, Iranian footballer
• Jafar Mondal (born 1999), Indian footballer
• Jafar Panahi (born 1960), Iranian filmmaker
• Jafar Salmasi (1918–2000), Iranian weightlifter
• Jafar Shafaghat (c.1915–2000), Iranian General officer in the Iranian Pahlavi Army
• Jafar Shahidi (1918–2008), scholar of Persian language and literature and historian of Islam
• Jafar Sharif-Emami (1910–1998), Prime minister of Iran
• Jafar Sobhani (1929), Iranian Shia Marja
• Jafar Shojouni (1932-2016) Iranian Shia cleric and politician who served a member of the Parliament of Iran
• Jafar Towfighi (born 1956), Iranian engineer and politician
• Jafar Zafarani (born 1947), Iranian mathematician
• Jafar Umar Thalib (1961–2019), Indonesian ulama and Islamic political figure

• Jaafar Jackson (born 1996), American singer and actor

• Ja'far Kashfi, Persian philosopher of 19th century
• Ja'far Pishevari (1893-1947), Iranian politician
• Ja'afar Touqan (born 1938), Palestinian-Jordanian architect
• Tuanku Ja’afar, the tenth Yang di-Pertuan Agong (King) of Malaysia from 26 April 1994 until 25 April 1999 and the tenth Yang Di-Pertuan Besar (Ruler) of Negeri Sembilan

• Jaffar Idukki, Indian impressionist and actor in Malayalam film
• Jaffer Zaidi, Pakistani musician and lead vocalist of the Pakistani band Kaavish

• Jaffer Rahimtoola (1870-1914), Indian barrister

• Cafer Tayyar Eğilmez, Turkish politician

Džafer

• Džafer Kulenović (1891–1956), Yugoslav politician who led the Yugoslav Muslim Organization in the Kingdom of Yugoslavia, and was briefly government minister

• Gaafar Nimeiry (1930-2009), President of Sudan

• Xhafer Bej Ypi (1880–1940), Albanian politician
• Xhafer Deva (1904–1978), Kosovo Albanian politician
• Xhafer Spahiu (1923–1999), Albanian politician

• Abdul Halim Jaffer Khan (1927–2017), Indian sitar player
• C. K. Jaffer Sharief or Challakere Kareem Jaffer Sharief (1933–2018), Indian politician
• Mir Jafar Baghirov (1896–1956), Azerbaijani communist leader under the Soviet rule
• Akif Jafar Hajiyev (1937–2015), Azerbaijani mathematician
• Mufti Jafar Hussain, Pakistani Shia mujtahid and political leader
• Seyyed Jafar Kashfi, Iranian calligrapher
• Mohammad Jafar Mahallati, Iranian scholar of Islamic studies and a former diplomat
• Mohammad Jafar Mahjoub (1924-1996), Iranian scholar of Persian literature, essayist, translator and teacher
• Muhammad Jafar Moravej, Iranian Cleric
• Mohammad Jafar Montazeri (born 1949), Iranian cleric and judge and the current Attorney-General of Iran
• Mohammad Jafar Moradi (born 1990), Iranian long distance runner
• Sayed Jafar Naderi (born 1965), ethnic Hazara-Ismaili who controlled Baghlan Province of Afghanistan during the early 1990s
• Mustafa Jaffer Sabodo, Tanzanian economist, consultant and businessman
• Mohammad Jafar Yahaghi (born 1947), Persian writer, literary critic, editor and translator

Jafar

• Adnan Jafar (born 1949), Iraqi footballer
• Badr Jafar (born 1979), Emirati business executive
• Jafar Dhia Jafar (born 1943), Iraqi nuclear physicist
• Majid Jafar (born 1976), UAE businessman
• Mustapha Ben Jafar (born 1940), Tunisian politician and doctor
• Syed Jafar, Indian-American electrical engineer and computer scientist
• Talha Jafar, Ethiopian-Argobba rebel and governor

Jaafar

• Onn Jaafar (1895–1962), Malay politician and a Menteri Besar (Chief Minister) of Johor in Malaysia, then Malaya
• Raja Jaafar Raja Muda (crown prince) of Perak Darul Ridzuan

Jaffar

• Said Mohamed Jaffar (1918–1993), president of the State of Comoros

Jaffer

• Armaan Jaffer (born 1998), Indian cricketer
• Jameel Jaffer, Canadian human rights and civil liberties attorney
• Melissa Jaffer (born 1936), Australian actress
• Mobina Jaffer (born 1949), Canadian Senator
• Murtz Jaffer, Canadian celebrity journalist
• Rahim Jaffer (born 1971), Canadian politician
• Sadaf Jaffer (born 1983), American politician and scholar
• Sayed Mohammed Jaffer (born 1985), Bahraini footballer
• Wasim Jaffer (born 1978), Indian cricketer

Džaferović

• Vanja Džaferović (born 1983), Croat-Bosnian footballer

Gaafar

• Ahmed Gaafar (born 1985), Egyptian footballer
• Farouk Gaafar (born 1952), Egyptian footballer
• Mostafa Gaafar (born 1981), Egyptian footballer

Umm Ja'far

• Zubaidah bint Ja'far, (died 831) also known as Umm Ja'far was an Arab Abbasid princess, wife of caliph Harun al-Rashid (r. 786–809) and mother of caliph al-Amin (r. 809–813)
• Umm Ja'far Shuja, (died 861) was the mother of Abbasid caliph al-Mutawakkil
• Shaghab, (died 933) also known as Umm Ja'far was the mother of 10th-century Abbasid caliph al-Muqtadir

• Jaffar, a character in The Thief of Bagdad (1940 film)
  • Jafar (Aladdin), the main antagonist (inspired by the character in The Thief of Bagdad) in the 1992 Disney animated film Aladdin, its first sequel, The Return of Jafar, and its 2019 live-action remake
    • Jafar, one of the primary antagonists in Once Upon a Time in Wonderland, based on the Aladdin character
    • Ja'far, the main protagonist in the musical Twisted, based on the Aladdin character
  • Jaffar, a character in Prince of Persia, inspired by the character in The Thief of Bagdad^[2]
• Jaffar, a character in the video game Fire Emblem: The Blazing Blade
• Ja'far, a character in the manga Magi: The Labyrinth of Magic
• Zafar, a character in the television show Aladdin – Naam Toh Suna Hoga inspired from the character of the grand vizir in Disney's Aladdin

• Khawlah bint Ja'far, one of the wives of the fourth Muslim Caliph Ali ibn Abi Talib
• Zubaidah bint Ja`far, granddaughter of the Abbasid caliph Al-Mansur, through his son Ja'far, a wife of Harun al-Rashid
• Jifar (name), Ethiopian variant of the name
• Jaffa