72 registered streets starting with "O"
| Street Name | Grade | Buildings |
|---|---|---|
| Oliver Street | B | 8 |
| Olive Street | B | 4 |
| Olmstead Avenue | B | 26 |
| Olympia Boulevard | B | 6 |
| Onderdonk Avenue | B | 181 |
| Oneida Avenue | B | 5 |
| Oneil Place | A | 1 |
| Ontario Avenue | A | 1 |
| Oocean Parkway | D | 1 |
| Openview Lane | A | 3 |
| Orange Street | C | 5 |
| Orchard Street | C | 86 |
| Oriental Boulevard | D | 1 |
| Orient Avenue | B | 11 |
| Orinoco Place | C | 1 |
| Orloff Avenue | C | 10 |
| Ormond Place | A | 1 |
| Ormsby Avenue | A | 1 |
| Osborne Place | C | 2 |
| Osborn Street | B | 35 |