Jacob Tierney
- Birthday: 1979-09-26
- Place of birth: Montreal, Quebec, Canada
- Also know as: Jacob D. Tierney
Jacob Daniel Tierney (born September 26, 1979) is a Canadian actor, film director and screenwriter. He is the son of veteran producer Kevin Tierney. He is an actor and producer, known for "The Trotsky" (2009), "Letterkenny" (2016) and "Twist" (2003), and is most recently known for his role as the creator, writer and director of the hit Crave TV series "Heated Rivalry."
