The Ballad of Oppenheimer Park (Spanish: La Balada del Oppenheimer Park) is a 2016 Mexican documentary film by Juan Manuel Sepúlveda. It chronicles the lives of several First Nations people occupying Oppenheimer Park in Vancouver's Downtown Eastside. They rest, recreate, perform, and protest in the park, on land that belonged to their ancestors. Throughout, they tease the filmmaker, who spent two years filming in the park, and use performance to ridicule stereotypical representations of their identities. The film is experimental in its narrative structure and plays with Western genre tropes.