Jeffrey John Krosnoff (September 24, 1964 – July 14, 1996) was an American race car driver.

In the 1996 season, he made 11 starts in the CART Champ Car Series, driving a Reynard-Toyota for Arciero-Wells Racing.

On July 14, 1996, with four laps to go in the Molson Indy Toronto at Exhibition Place, Krosnoff's car made wheel-to-wheel contact with the car of Stefan Johansson, sending it into the air, over a concrete barrier, and into the catch fencing lining the street course.

The violence of the accident left the car broken in half and sent the cockpit section back across the track.

A track official, Gary Avrin, was also killed in the accident when he was struck by the right front wheel of Krosnoff's then-airborne car.