Zahra Khanom (1884 – 25 January 1936; Persian: تاج‌السلطنه), also known as Tadj al-Saltaneh, was an Iranian princess and member of the Qajar dynasty of Iran. A feminist, women's rights activist, and a memoirist, she was the daughter of Naser al-Din Shah, the Shah (king) of Iran from 1848 to May 1896. She was the love interest of Yousef Abdu Aref Qazvini who wrote his poem Fe eh ya Qajar for her.