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