Esma’il Mass’oud (or Esma’il Mirza Mo’tamed ed-Dowleh) (1887–1968) was Persian Prince of Qajar Dynasty, son of Mass'oud Mirza Zell-e Soltan and grandson of Nasser al-Din Shah Qajar.

He was educated in École spéciale militaire de Saint-Cyr in Paris and Royal Military Academy Sandhurst in London. Esma’il Mirza was appointed by George VI a Knight Commander of Order of the Star of India and a Knight of the Order of the White Eagle in Russia by Tsar Nicholas II. He returned to Iran in 1916 and died at age of 81 in 1968 in Esfahan.

He was buried in Takht-e Pulad cemetery.