List of road routes in New South Wales (numeric)

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Road routes in New South Wales assist drivers navigating roads throughout the state, as roads may change names several times between destinations, or have a second local name in addition to a primary name. New South Wales previously used an older, numerical shield-based system (which this article focuses on) until 2013, when it was completely replaced (except for Tourist Routes) with a newer, alphanumeric system.

New South Wales implemented the federally-issued National Routes system between 1954 and 1955, using white-and-black shields highlighting interstate links between major regional centres; some of these routes were later upgraded into National Highways using green-and-gold shields when the National Roads Act was passed in 1974.

Sydney's initial shield system was the Ring Road system, with three routes rolled out in 1964. These were eventually replaced by a specialised Freeway Routes system in 1973, and a state-wide shield-based numbering scheme, allocating blue-and-white shields across Sydney in 1974, numbered to fit around existing National Routes, with separate allocations for rural New South Wales, the Hunter (Greater Newcastle) and Illawarra (Greater Wollongong) regions; this system received sporadic updates throughout the 1990s and 2000s. These were augmented by the Metroad system in 1992–93, with its blue-on-white hexagonal shields identifying major routes through Sydney, with additional routes added through the late 1990s.

The new alphanumeric system, introduced in 2013, has now replaced the previous scheme across the entire state. It consists of alphanumeric routes, a one-to-three digit number prefixed with a letter (M, A, B, or D) that denotes the grade and importance of the road, and (apart from Tourist Routes) is now the state's only road route numbering system.

Some routes, in part or in their entirety, may have been made obsolete by the alphanumeric designation: these replacement routes are noted but not listed in full here. Some also may follow older alignments or routes later changed even after the new system was introduced, and are included here for the sake of completion. Roads are described in either a west–east or north–south alignment.