Daneshvar, the first head of the Iranian Writers Association, was also the first woman to publish a novel in her native country.
There was no cause of death given, although RFE/RL's Radio Farda reported that she had battled a lengthy illness.
Her most successful and best-selling novel, 1969's “Savushun" ("Mourners of Siyavash"), about a family during the World War II occupation of Iran by the Allied Forces, has been translated into 17 languages. Iranian.com describes it as the best-selling Iranian novel of all time.
Many Iranian intellectuals regard her as one of that country's greatest novelists.