The Soleymaniyeh Palace (Persian: کاخ سلیمانیه) is a Qajar era royal residence in Karaj, Iran.

[1] The palace, designed by the architect Hajji Mohammad Hossein Isfahani, was constructed by the order of Fath-Ali Shah in a large garden near the Karaj river.

The more probable one states that the palace was built on the occasion of the birth of the Shah's 34th son named Soleiman Mirza.

[1][3][4][5][2] However, Gaspard Drouville, a Frenchman who was in Iran at the time, reports that a son of Fath-Ali Shah, Mohammad-Ali Mirza Dowlatshah, was unhappy of Abbas Mirza's designation as the crown prince, and to prove his worth engaged in warfare with the Ottoman governor of Iraq, Suleiman Pasha, defeated him and took a hefty loot.

He then sent the loot to the capital, and the Shah made the palace with that money and named it Soleymaniyeh to forever commemorate the victory over the Ottomans.