Ronni Hawk -- one of the stars of the Disney sitcom, "Stuck in the Middle" -- just got charged for bringing a knife to a nasty fight with her boyfriend.
TMZ has learned the L.A. City Attorney slapped Hawk with 3 misdemeanor counts for the July incident. She's now facing charges of domestic battery, assault with a deadly weapon and brandishing a knife.
Law enforcement sources tell TMZ ... Ronni and her BF, Miles Fallon, got into an argument, and things escalated when he bolted from the house. We're told Ronni grabbed a knife and chased after Miles while he was in the parking lot.
Cops were called to the scene and arrested Ronni.
TMZ broke the story when the 20-year-old was taken to jail. Our sources said officers who responded noticed Miles had visible injuries, including scratches.
We've reached out to Ronni's reps, but no word back.
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