Petar Petrović-Njegoš

Petar Petrović-Njegoš (Cyrillic: Петар Петровић-Његош) may refer to:


 * Petar I Petrović-Njegoš (1748–1830), Prince-Bishop of Montenegro, Exarch of the Serbian Orthodox Church
 * Petar II Petrović-Njegoš (1813–1851), Prince-Bishop of Montenegro, poet and philosopher
 * Petar III Petrović-Njegoš (1889–1932), Prince Peter of Montenegro, son of Nicholas I