The 58th Mechanised Infantry Brigade (58机械化步兵旅) is a brigade of the People's Liberation Army Ground Force. It is one of the three maneuver elements of the 20th Group Army in the Jinan Military Region. The 58th was previously a division, being converted to a brigade sized formation in 1999. During the Korean War, the division was part of the People's Volunteer Army. At this time, the division consisted of the 172nd, 173rd, and 174th Regiments. The 58th Division attacked the U.S. Marines holding Hagaru-ri during the Battle of Chosin Reservoir.