The altercation happened just before 10:30 P.M.
The suspect is described as a white male in his mid 20's with some facial hair, baggy clothing and a "sloppy" beanie hat.
The victim was walking away from the park when he was stabbed in the chest by the man.
He was transported to St. Charles where he was treated for non-life threatening injuries.
Anyone with information related to this investigation is asked to call the Bend Police Department.