Ponor is a natural surface opening in karst limestone landscapes.

It may also mean:

Places

• Ponor, Alba, a commune in Romania
• Ponor, a village in Pui Commune, Hunedoara County, Romania
• Ponor, a river in Bihor County and Cluj County, Romania, tributary of the Someșul Cald
• Ponor (Nerskaya), a river in Moscow Oblast, Russia, tributary of the Nerskaya
• Ponor, Sofia Province, a hamlet near Kostinbrod, Sofia Province, Bulgaria
• Ponor (mountain), part of the Balkan Mountains in Bulgaria
• Ponor (Knjaževac), a village in Serbia
• Ponor (Pirot), a village in Serbia
• Ponor, Olovo, a village in Bosnia and Herzegovina
• Ponor (Pale), a village in Bosnia and Herzegovina

People

• Cătălina Ponor (b. 1987), a Romanian gymnast

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