The Jack Knife Fire was a wildfire five miles north of Kent, Oregon in the United States.

The fire was started by lightning on June 20, 2018, around 3:00 pm, just west of the John Day River.

The Jack Knife fire was started on June 20, 2018, by a lightning strike, along the John Day River, five miles north of Kent, Oregon.

The fire was one of 70 wildfires started in Oregon due to lightning strikes over a two-day period.

[2] By June 26, the fire had grown to 15,676 acres (63 km2) as the result of hot and dry weather.