| Patterson Road | |
| Length | 8 km (5 mi) |
| Direction | Northeast-Southwest |
| From | Rockingham Road, Kwinana Beach |
| To | Railway Terrace, Rockingham |
| Major junctions | Kwinana Beach Road, Ennis Avenue, Read Street |
Patterson Road is a major road between Kwinana and Rockingham and is part of Australia's National Highway 1 for part of its length. The first part goes through Kwinana's heavy industrial area. After the Ennis Avenue turnoff which takes Highway 1 with it, Patterson Road becomes Route 18 and goes through the Rockingham Beach area until it turns into Railway Terrace one block from the ocean at Mangles Bay, which is part of the Indian Ocean.
Until the Kwinana Freeway was built to Safety Bay Road in 2002, Patterson Road was the main road to Mandurah and the South West of Western Australia from Perth. The Freeway construction has relieved pressure on the road.