Ubayd Allah ibn Yahya ibn Khaqan
Ubayd Allah ibn Yahya ibn Khaqan  عبيد الله بن يحيى بن خاقان  | |
|---|---|
| Born | |
| Died | 5 August 877 Samarra, Abbasid Caliphate  | 
| Occupation(s) | Abbasid vizier and Court official | 
| Years active | 
  | 
| Known for | Tutor to one of al-Mutawakkil's sons. | 
| Children | Muhammad ibn Ubayd Allah al-Khaqani Abu Muzahim Musa ibn Ubayd Allah al-Khaqani  | 
| Father | Yahya ibn Khaqan | 
Abū al-Ḥasan ʿUbayd Allāh ibn Yaḥyā ibn Khāqān (Arabic: أبو الحسن عبيد الله بن يحيى بن خاقان) was an Abbasid official who served twice as vizier, under caliphs al-Mutawakkil and al-Mu'tamid.