Mangart or Mangrt is a mountain in the Julian Alps, located on the border between Italy and Slovenia. With an elevation of , it is the third-highest peak in Slovenia, after Triglav and Škrlatica. It was first climbed in 1794 by the naturalist Franz von Hohenwart. Mangart is also the name of the mountain range between the Koritnica Valley and the Mangart Valley, with the highest peak called Veliki Mangart (Big Mount Mangart).