함경

Etymology
, from the former province's two principal cities and.

Proper noun

 * 1)  Hamgyong, a former province of northeastern Korea under the Joseon dynasty, now divided into North Korea's North and South Hamgyong provinces.
 * 2) The Hamgyong Mountains, a mountain range between the north coast of the East Korea Bay and the Kaema Highlands which runs through these two provinces.