- Oakhurst to Waldorf Wahroonga Residential
- Oakville to Waldorf Wahroonga Residential
- Oatlands to Waldorf Wahroonga Residential
- Oatley to Waldorf Wahroonga Residential
- Old Guildford to Waldorf Wahroonga Residential
- Old Toongabbie to Waldorf Wahroonga Residential
- Oran Park to Waldorf Wahroonga Residential
- Orchard Hills to Waldorf Wahroonga Residential
- Oxford Falls to Waldorf Wahroonga Residential
- Oxley Park to Waldorf Wahroonga Residential
- Oyster Bay to Waldorf Wahroonga Residential
- Sydney Airport to Waldorf Wahroonga Residential
- Waldorf Wahroonga Residential to Oakhurst
- Waldorf Wahroonga Residential to Oakville
- Waldorf Wahroonga Residential to Oatlands
- Waldorf Wahroonga Residential to Oatley
- Waldorf Wahroonga Residential to Old Guildford
- Waldorf Wahroonga Residential to Old Toongabbie
- Waldorf Wahroonga Residential to Oran Park
- Waldorf Wahroonga Residential to Orchard Hills
- Waldorf Wahroonga Residential to Oxford Falls
- Waldorf Wahroonga Residential to Oxley Park
- Waldorf Wahroonga Residential to Oyster Bay
- Waldorf Wahroonga Residential to Sydney Airport