The pictures, posted under the hashtag #mystealthyfreedom, feature women of all ages posing with their hair freely showing in different areas of the country.
Journalist Masih Alinejad collects and posts the photos to the "Stealthy Freedoms of Iranian Women" Facebook page. Since she created the page on May 3, it has garnered more than 223,000 likes as of Friday morning.
In one of the photos, she is running down a London street with her curly brown hair flowing in the wind. She added a comment about how the simple pastime always reminded her that women in her home country weren't free to do the same.
After the 1979 Islamic Revolution, it became illegal for women in Iran to leave the house without wearing a headscarf. The punishment for breaking the law ranges from small fines to detainment.
To accompany the photo, Alinejad wrote a comment that ended up sparking a lot of attention among her friends and fans back home.
'Every time that I run in London, feeling the wind in my hair, I remember that my hair is like a hostage in the hands of the Islamic Republic government,'" she translated the comment to CTVNews.ca in a phone interview from London.
She then posted a second photo of herself, driving down a road without a hijab, noting that as an Iranian woman she could create her own "moment of freedom" in privacy, when no one else is around.
"It's like 'stealthy freedom' … it's like a guilty pleasure," she said. She added that she was certain that there were other women in Iran who similarly enjoyed these private moments, and asked her followers if they also took photos of these secret "freedoms."