Joining in on the fun, I'm realizing I've only seen 9 Iranian films... I really would have thought it was more, probably because most of them are pretty great.
Taxi (jafar Panahi, 2015)
Jodaeiye Nader az Simin / A Separation (Asghar Farhadi, 2011)
Tehran Taboo (Ali Soozandeh, 2017)
Se rokh / 3 Faces (Jafar Panahi, 2018)
Forushande / The Salesman (Asghar Farhadi, 2016)
Sonita (Rokhsareh Ghaemmaghami, 2015)
Ta'm e guilass / The Taste of Cherry (Abbas Kiarostami, 1997)
Lerd / A Man of Integrity (Mohammad Rasoulof, 2017)
Nahid (Ida Panahandeh, 2015)
Tehran Taboo is questionably Iranian (German production), but undoubtedly about Iran, it's an animated film about people having to deal with laws on sexual matters, the main character being a prostitute. I don't know why it mostly went unnoticed, it was quite beautiful and poignant.
Sonita is a documentary about an Afghani rapper who fled to Iran and tried to make things work here. She's very endearing.