List of road routes in Tasmania

Road routes in Tasmania assist drivers navigating roads in urban, rural, and scenic areas of the state. The route numbering system is composed of National Highway 1, and three categories of alphanumeric routes: 'A' routes, which are the state's most important arterial roads; 'B' routes, other important sub-arterial and connecting roads; and 'C' routes, significant minor roads.

The current route numbering system was introduced in 1979, based on the British alphanumeric system from 1963. The new system aimed to upgrade the signing of destinations, including previously unmarked roads, and to simplify navigation by allowing visitors to follow numbered routes. There have been various changes to the system over the years, including a few minor adjustments after a 2011 review by the Road Route Code Advisory Group.

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