Mehrab Ghasem Khani (Persian: مهراب قاسمخانی, born 7 December 1970 in Tehran) is an Iranian film writer.
He has MFA in painting from Islamic Azad University, fine arts and architecture faculty, central branch, Tehran. He started his work as a scriptwriter in 1997. He married Shaghayegh Dehghan in 2003. Shaghayegh Dehghan is an Iranian actress who is active in Iranian cinema since 1993. They have one son, Noyan. Ghasem Khani also has a daughter from his first marriage named Nirvana. His brother, Peyman Ghasem Khani is also a writer and his spouse, Bahareh Rahnama is actress.