Area code(s) +382 40
Area 2,065 km²
Nikšić Municipality (Montenegrin: Opština Nikšić/Општина Никшић) is one of the municipalities of Montenegro. The centre is Nikšić. This municipality has the largest landmass of any municipality in Montenegro (covering 15% of Montenegro), and includes 129 settlements. It was also largest landmass municipality in socialist Yugoslavia.
The 2011 census recorded a total population of 72,443. The inhabitants were largely divided between Montenegrins, numbering 46,149 (63.70%), and Serbs, numbering 18,334 (25.31%), the rest belonging to other ethnic groups (3,114, 4.30%) or opting undeclared (4,846, 6.67%). By language, 43,75% spoke Montenegrin, while 42,44% spoke Serbian. By religious affiliation, Eastern Orthodoxy was predominant (91,38%).