Richmond Road (and at its northwestern end as Blacktown Road) is a 23.5-kilometre (15 mi)[1] arterial road linking Richmond and Blacktown through the northwestern suburbs of Sydney, Australia.

Blacktown Road commences at the intersection of Lennox and Bourke Streets in Richmond and heads in a southeasterly direction as a two-lane, single carriageway road, meeting George Street at Londonderry, where it changes name to Richmond Road and continues to meet The Northern Road a short distance later, then continuing southeast before widening to a four-lane, dual-carriageway road through Marsden Park until it reaches the interchange with Westlink M7 at Dean Park.

It continues southeasterly through Woodcroft until it reaches the outskirts of Blacktown, crossing the Main Western railway line as a bus-only road, before terminating at the intersection with Kildare Road and Patrick and Main Streets in Blacktown.

When Westlink M7 opened in 2005 (subsuming Philip Parkway, part of State Route 61), the allocation was removed in its entirety.

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