Jacob Daniel Tierney is a Canadian actor, director, screenwriter, and producer of film and television. He is the co-creator, co-writer, director, and executive producer of the Canadian sitcom Letterkenny (2016–2023), the executive producer and director of the first two seasons of its spinoff series, Shoresy (2022–2023), and the creator, writer, director and executive producer of the sports romance series Heated Rivalry (2025–present).