Guyana

Number Three Fyrish, East Berbice-Corentyne → Number Twelve, Mahaica-Berbice → Number Two Courtland, East Berbice-Corentyne → Oceanview, Essequibo Islands-West Demerara → Ogle, Demerara-Mahaica → Okum, Essequibo Islands-West Demerara → Old England, Upper Demerara-Berbice → Oleander Gardens, Demerara-Mahaica → Onderneeming, Essequibo Islands-West Demerara → Onderneeming, Pomeroon-Supenaam → Opadai, Cuyuni-Mazaruni → Opposite, Pomeroon-Supenaam → Opposition, Pomeroon-Supenaam → Oranapai Landing, Cuyuni-Mazaruni → Orangestein, Essequibo Islands-West Demerara → Orealla, East Berbice-Corentyne → Orinduik, Potaro-Siparuni → Ormsary, Mahaica-Berbice → Osterbeck, Essequibo Islands-West Demerara → Pakera, Barima-Waini →