Elan Mastai is a Canadian screenwriter and novelist. He is best known for The F Word, for which he won the Canadian Screen Award for Best Adapted Screenplay at the 2nd Canadian Screen Awards in 2014. His other screenwriting credits include MVP: Most Vertical Primate and Fury. He has described The F Word as the first time he wrote a screenplay in his own voice, rather than to the commercial demands of a mass-audience film. Mastai is supervising producer of NBC's This Is Us as well as being one of the comedy-drama's writers.