Matthew Fox -- No Jail in DUI Case

"Lost" star Matthew Fox won't be locked up after his DUI arrest last month -- TMZ has learned, the actor struck a plea deal with prosecutors that will keep him out of jail.

TMZ broke the story ... Fox was pulled over in Bend, Oregon May 4th after police observed the actor swerving out of his lane. Cops decided Fox was intoxicated and placed him under arrest.

In exchange for no jail time, Fox pled no contest to one count of DUI.

As part of the deal, Fox's can't drink alcohol for one year and is required to complete a drug and alcohol treatment program.