After testing positive for coronavirus, Rahbar was taken to Masih Daneshvari hospital in northern Tehran a few days ago.
When her health worsened, she had to be connected to a medical ventilator.
Rahbar had been elected as a representative for the residents of Tehran in the recent parliamentary elections.
The first known female politician to die from coronavirus in Iran, Rahbar was a member of the Islamic Coalition Party, a conservative political party.
Iran’s administration on Thursday extended the closure of all schools and universities nationwide until the end of the current Iranian year (March 19) as the country is struggling with the outbreak of the novel coronavirus.
Medical staffs in 21 provinces of Iran have been working tirelessly over the past weeks to contain the novel coronavirus that has originated from China.
Several high-ranking officials, including the deputy health minister and five lawmakers, have tested positive for the coronavirus as the spread of the outbreak forced the government to call on people to stay at home.