- O'Brien Crescent
- O'Connor Green
- O'Neil Close
- Oak Drive
- Oak Street
- Oakdale Place
- Oakfield Close
- Oaklands Crescent
- Oakville Crescent
- Oakwood Close
- Oates Green
- Oberg Court
- Oberlin Avenue
- Ockley Close
- Odell Green
- Odstone Green
- Ogden Avenue
- Ogilvie Close
- Ohio Close
- Oldbury Street
- Oldford Close
- Oldring Crescent
- Oliver Street
- Olsen Street
- Olympic Green
- Onaway Avenue
- Onslow Square
- Opal Avenue
- Openview Close
- Orchard Court
- Orchard Green
- Orchid Court
- Oreston Close
- Orient Green
- Orillia Park
- Orr Drive
- Orwell Close
- Osborne Street
- Oscar Court
- Osler Crescent
- Oslo Close
- Osmond Close
- Oswald Close
- Ottawa Street
- Otterbury Avenue
- Overand Place
- Overdown Drive
- Overland Place
- Ovington Close
- Owens Close
- Oxbow Street
- Oxford Avenue
- Oxley Close
- Oyen Crescent