The Juvayni family was a Persian^[1][2] family native to the Juvayn area in Khorasan. The most famous members were Shams al-Din Juvayni (d. 1284) and his elder brother Ata-Malik Juvayni (d. 1283). The family was known for patronizing many scholars and poets, such as Saadi Shirazi and Nasir al-Din al-Tusi.

The family claimed ancestry from al-Fadl ibn al-Rabi' (d. 823/4), who had served in high offices under the Abbasid caliph Harun al-Rashid (r. 786–809).^[1] The family worked for many different dynasties during its heyday, such as the Ziyarids, Seljuks, Khwarazmians, and the Ilkhanate.^[1][3]

Notable members

• al-Juwayni, Sunni Shafi'i jurist and mutakallim theologian
• Muntajab al-Din Badi Juvayni, divan-i insha (royal secretariat) of Ahmad Sanjar (r. 1118–1157)
• Baha al-Din Muhammad ibn Ali Juvayni, poet during the reign of the Khwarazmshah Il-Arslan (r. 1156–1172)
• Shams al-din Muhammad ibn Muhammad Juvayni, state treasurer (mustawfi) of the Khwarazmshah Ala al-Din Muhammad II (r. 1200–1220) and his son Jalal ad-Din Mingburnu (r. 1220–1231)
• Baha al-Din Muhammad ibn Muhammad Juvayni, bureaucrat under the Khwarazmian and Ilkhanate dynasties
• Ata-Malik Juvayni, Ilkhanate governor of Iraq
• Shams al-Din Juvayni, sahib-i divan (vizier and minister of finance) of the Ilkhanate from 1263 to 1284
• Baha al-Din Muhammad Juvayni, Ilkhanate governor of Persian Iraq and Yazd
• Sharaf al-Din Harun Juvayni, poet and governor of Ilkhanate Anatolia