Hafsia Herzi is a French actress, screenwriter, and director. She is best known for her debut role in the award-winning Franco-Tunisian feature The Secret of the Grain for which she won the award for most promising actress at the César Awards 2008, and the Marcello Mastroianni award, for best emerging actor/actress at the 64th Venice International Film Festival.

The Secret of the Grain, titled Couscous in the UK, is a 2007 Franco-Tunisian drama film directed by Abdellatif Kechiche. The film stars Habib Boufares as an aging immigrant from the Maghreb whose ambition to establish a successful restaurant as an inheritance for his large and disparate family meets sceptical opposition from the French bureaucracy.