Nasim Siabishahrivar is an Iranian singer who specialises in the vocal repertoire of Persian classical music.

Born in Tehran, she began learning Persian music at an early age, studying with ostads Hatam Askari, Dr. Hossein Omoumi, and, for more than a decade, with the renowned singer Mohammad Reza Shajarian. Despite restrictions on female vocalists that have been in place since the 1979 Iranian Revolution, Siabishahrivar has become popular among connoisseurs of Persian classical dastgah and has released three albums of classical vocal music.

She has performed in many European countries, recently as a member of the Sarvestan Ensemble. She is also active as a teacher, and offers regular vocal workshops in Tehran. Siabishahrivar holds an M.A. degree in Persian Literature.