Zahra Khanom or Taj al-Saltaneh (1884 – 25 January 1936; Persian: تاج‌السلطنه) also known as princess Qajar, was a princess of the Qajar dynasty, known as a feminist, a women's rights activist and a memoirist. She was the daughter of Naser al-Din Shah, the King of Persia 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.