Mu'ayyid al-Mulk
| Mu'ayyid al-Mulk | |
|---|---|
| Born | 1051 | 
| Died | 1101 (aged 49–50) | 
| Nationality | Seljuk Empire | 
| Occupation | Bureaucrat | 
| Years active | 1070s–1101 | 
| Father | Nizam al-Mulk | 
Mu'ayyid al-Mulk (Persian: مؤيد الملک) was a Persian bureaucrat, who served as the vizier of the Seljuk sultan Berkyaruq (r. 1092–1105) from 1094 to 1095, and later vizier of the Seljuk prince and contender Muhammad I Tapar from 1099 to 1101. He was the most energetic and gifted of the sons of Nizam al-Mulk, with whom he neared in capability.