Abdosamad Mirza Ez od-Dowleh () (May 1843 â 1929) was an Iranian prince and the fifth son of Mohammad Shah Qajar by his wife Ogholbeigeh Khanum, a lady of Turkmen origin. He is the ancestor of the Salour (Saloor) family.
In 1873, Ezz ed-Dowleh traveled with of his brother Naser al-Din Shah Qajar on the Shah's visit to Europe. Ezz ed-Dowleh was governor of Qazvin and Borujerd in 1874, governor of Hamadan, Malayer, Tuyserkan and Nahavand from 1874 to 1876 and governor of Zanjan from 1901 to 1902.
In 1882, Naser al-Din Shah sent Ezz ed-Dowleh as a Special Ambassador to the Russian Court to congratulate Tsar Alexander III on his accession to the throne.
In 1929, he died in Tehran and was buried in Fatima Masumeh Shrine in Qom.