Ubayd Allah ibn Marwan
| Ubayd Allah ibn Marwan | |
|---|---|
| Governor of the Balqa | |
| Monarch | Abd al-Malik | 
| Personal details | |
| Parents | 
 | 
| Military career | |
| Allegiance | Umayyad Caliphate | 
| Rank | Commander | 
| Battles / wars | Arab–Byzantine wars | 
| Relations | Abd al-Malik (brother) Al-Walid I (nephew) Aban (brother) | 
ʿUbayd Allāh ibn Marwān ibn al-Ḥakam (Arabic: عبيد الله بن مروان بن الحكم) was an Umayyad prince and commander. He was the son of the Umayyad caliph Marwan I (r. 684–685) and the latter's wife Umm Aban al-Kubra, a daughter of Caliph Uthman (r. 644–656).
Ubayd Allah's half-brother Caliph Abd al-Malik (r. 685–705) appointed him as one of the commanders of the near-annual raids against the Byzantine frontier with the Umayyad Caliphate. Abd al-Malik also appointed Ubayd Allah, for an unclear period, the governor of the Balqa, a subdistrict of the Damascus district spanning the area between Syria and Wadi al-Qura (in northwestern Arabia). Ubayd Allah's full brothers Aban and Uthman also held command roles under Abd al-Malik.