Jonathan Blair Hensleigh (born February 1959) is an American screenwriter and film director, working primarily in the action/adventure genre of films.

Hensleigh graduated from the University of Massachusetts Amherst in 1981 with a degree in history.Carey, Mary. "True to their school". UMass Magazine, Winter 1999. He attended the University of Virginia School of Law, received his J.D. from Tulane University Law School, and was admitted to the Massachusetts Bar in 1985. Before moving into writing, he worked as an attorney for several years.

Hensleigh's start in the entertainment industry came writing episodes of the television series The Young Indiana Jones Chronicles. He received his first film credit in 1993's A Far Off Place, for which he wrote an early version of the script.Marx, Andy. "Just Far Away: An Adventure in Adventureland". Los Angeles Times, July 19, 1992, p. 24. His next two projects were Die Hard: With a Vengeance and Jumanji, both of which were released in 1995. The Die Hard sequel was based on a spec script Hensleigh had originally conceived as a Brandon Lee action film before the actor's untimely death. With the working title Simon Says, the script was also considered for use as the fourth installment of the Lethal Weapon series before being picked up for Die Hard.