| Oyster Bay, Site of Quaker Meeting House (1690) and Burial Ground | | | en | 0 |
| Oyster Bay, Sampson-Adam-Folger Cemetery | | | en | 0 |
| Oyster Bay Cove, White-Larrabee Cemetery AKA East Main Street Cemetery | | | en | 0 |
| Oyster Bay, Fort Hill and Townsend Burying Ground | | | en | 0 |
| Oyster Bay, Baptist Church Cemetery | | | en | 0 |
| Oyten, Friedhof Bassen (de) | | | en | 0 |
| Oyster Bay, Wallace Cemetery | | | en | 0 |
| Oyster Bay, McCoun Cemetery | | | en | 0 |
| Oyster Bay, Shadbolt Cemetery | | | en | 0 |
| Oyster Bay, Townsend-Wortman Cemetery | | | en | 0 |
| Oyster Creek, Hudgens Cemetery | | | en | 0 |
| Oyen Cemetery | | | en | 1 |
| Oystermouth Cemetery | | | en | 83 |
| Oye-plage Communal Cemetery | | | en | 61 |
| Oy-Mittelberg, Kirchfriedhof Petersthal (de) | | | en | 0 |
| Oy-Mittelberg, Friedhof Maria Rain (de) | | | en | 0 |
| Oygur, Кладбище (ru) | | | en | 0 |