Status for season 3
The series is NOT cancelled. However, it has not yet been renewed or cancelled for season 3
Apple has announced on Jan 26th, 2021 that "Tehran" has been renewed for season 2. The complete first season of "Tehran" is now streaming on Apple TV+.
Tehran is an Apple Tv series that features a Mossad agent who is undercover on a mission. The mission ends up placing her and everyone around her in great danger. Tehran stars Niv Sultan, Shaun Toub ("Homeland," "Crash"), Navid Negahban ("Homeland," "Legion," "Aladdin"), and Shervin Alenabi ("Baghdad in My Shadow").