The Căliman-Harghita Mountains (in Romanian, Munții Căliman-Harghita) are a group of mountain ranges in Romania.
These ranges are considered part of the Inner Eastern Carpathians. Within Romania, however, it is traditional to divide the Eastern Romanian Carpathians (Carpații Orientali) into three geographical groups (north, center, south), instead in Outer and Inner Eastern Carpathians. The Romanian categorization includes all of the Căliman-Harghita Mountains within the central Eastern Carpathians of Moldavia and Transylvania (Munţii Carpați Moldo-Transilvani).
The Moldavian-Transylvanian Carpathians include: