Jean-Marc Vallée (March 9, 1963 – December 25, 2021) was a Canadian director, film editor, and screenwriter. After studying film at the Université du Québec à Montréal, Vallée went on to make a number of critically acclaimed short films, including "Stéréotypes" (1991), "Les fleurs magiques" (1995), and "Les mots magiques" (1998).

His debut feature, "Black List" (1995), was nominated for nine Genie Awards, including nods for Vallée's direction and editing. His fourth feature film, "C.R.A.Z.Y." (2005), received further critical acclaim and was a financial success. Vallée's followup, "The Young Victoria" (2009), garnered strong reviews and received three Academy Award nominations, while his sixth film, "Café de Flore" (2011), was the most nominated film at the 32nd Genie Awards. Vallée's next films, the American dramas "Dallas Buyers Club" (2013) and "Wild" (2014) continued this acclaim, and the former earned him a nomination for the Academy Award for Best Film Editing.

Vallée ventured into television by executive producing and directing two projects for HBO, the drama series "Big Little Lies" (2017) and the thriller miniseries "Sharp Objects" (2018). For the former, he won the Primetime Emmy Award for Outstanding Directing for a Limited Series, Movie, or Dramatic Special.