Ohn-Kor was a village located in the Prytt Alliance on Kesprytt III, near the border with the Kes. It had at least one tavern. This village was uncommon in that most of its citizens were sympathetic to Kes.
In 2370, Kes agents enacted a plan for Captain Picard and Doctor Crusher to escape Prytt captivity and head to Ohn-Kor. When the two didn't show up at a rendezvous point at a tavern in the village, Kes ambassador Mauric suspected they had struck a deal with the Prytt government. (TNG: "Attached")