Saeed Roustaee, also spelled Saeed Roustayi, is an Iranian director, screenwriter and producer. He has won the Crystal Simorgh for Best Director, Best Screenplay and Best First Director at the 34th Fajr Film Festival for his feature directorial debut drama film Life and a Day (2016). In 2022, his second film, Just 6.5 (2019), was nominated for the César Award for Best Foreign Film. In April 2022, his third film, Leila's Brothers (2022), was selected to compete for the Palme d'Or at the 2022 Cannes Film Festival.

Crystal Simorgh for Best Director is an award presented annually by the Fajr International Film Festival held in Iran. It is given in honor of a film director who has exhibited outstanding directing.