Mount Kumgang (Korean pronunciation: [kɯmɡaŋsan]) is a 1,638 metres (5,374 ft)-high mountain in Kangwon-do, North Korea. Its name means "a firm heart in the face of truth".^{[citation needed]} It is about 50 km away from South Korea's Sokcho in Gangwon-do. It is one of the best-known mountains in North Korea. It is located on the east coast of the country, in Mount Kumgang Tourist Region, formerly part of Kangwŏn Province (38.58N, 128.17E). Mount Kumgang is part of the Taebaek mountain range which runs along the east of the Korean peninsula. The name means Vajra (or Diamond) Mountain.

Mount Kumgang has been known for its scenic beauty since ancient times and is the subject of many different works of art. Including its spring name, Kŭmgang (Hangul: 금강산; Hanja: 金剛), it has many different names for each season, but it is most widely known today in the Korean language as Kŭmgangsan. In summer it is called Pongraesan (봉래산, 蓬萊山: the place where a Spirit dwells); in autumn, Phung'aksan (풍악산, 楓岳山: hill of colored leaves, or 楓骨山: great mountain of colored leaves); in winter, Kaegolsan (개골산, 皆骨山: stone bone mountain).