The Mungyeong Massacre (, Hanja: 聞慶良民虐殺事件) was a massacre conducted by 2nd and 3rd platoon, 7th company, 3rd battalion, 25th Infantry Regiment, 3rd Infantry Division of the South Korean Army on 24 December 1949 of 86 to 88 unarmed citizens in Mungyeong, North Gyeongsang district of South Korea, all of whom were civilians and a majority of whom were children and elderly people. The victims included 32 children. The victims were massacred because they were Communist supporters or collaborators. However, the South Korean government blamed the crime on communist guerillas for decades.