This is a list of roads designated A23. Road entries are sorted by alphabetical order of country.

• Federal Highway (Australia), part of which is designated as A23
• A23 motorway (Austria), the major city-motorway in Vienna
• A23 road (England), a road connecting London and Brighton, East Sussex
• A23 autoroute, a road connecting Lille and Valenciennes, France
• A 23 motorway (Germany), a road connecting the hinterland of Hamburg
• A23 road (Isle of Man), a road connecting Strang and the Crosby road
• Autostrada A23 (Italy), a road connecting the A4 motorway to the Austrian border
• A23 road (Kenya), a road connecting Voi and Taveta
• A23 road (Northern Ireland), connects the district of Short Strand and the village of Ballygowan
• A23 motorway (Portugal)
• Autovía A-23, a road connecting Huesca and Zaragoza, Spain
• A23 road (Sri Lanka), a road connecting Wellawaya and Ella-Kumbalwela

See also

• List of highways numbered 23

List of roads or other routes with the same name

This article includes a list of roads, streets, highways, or other routes that are associated with the same title.
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