List of Lakes (Search Lake by Initial = O )
A / B / C / D / E / F / G / H / I / J / K / L / M / N / O / P / Q / R / S / T / U / V / W / X / Y / Z
| Lake Name (short) | Lake Name (in full) | Country |
|---|---|---|
| O' Higgins | Lake O' Higgins | Argentina / Chile |
| Obelija | Lake Obelija | Lithuania |
| Ogawara | Lake Ogawara | Japan |
| Oguta | Oguta Lake | Nigeria |
| Ohrid | Lake Ohrid | Albania / Macedonia |
| Okanagan | Okanagan Lake | Canada |
| Okeechobee | Lake Okeechobee | USA |
| Okutama | Okutama Reservoir ( Ogochi ) | Japan |
| Onega | Lake Onega | Russia |
| Ontario | Lake Ontario | Canada / USA |
| Opinaca | Opinaca Reservoir | Canada |
| Orta | Lake Orta | Italy |
| Oulu | Lake Oulu | Finland |
| Owasco | Owasco Lake | USA |
| Oze | Lake Oze | Japan |
