The Nun () is a 2013 French drama film directed by Guillaume Nicloux. It is based on the 18th-century novel "La Religieuse" by French writer Denis Diderot. The film premiered in competition at the 63rd Berlin International Film Festival. It received two nominations at the 4th Magritte Awards, winning Best Actress for Pauline Étienne, and a nomination at the 39th César Awards.