There are various European roads numbered A3 appearing in Euro Truck Simulator (ETS 1), Euro Truck Simulator 2 (ETS 2) or related games. The following list describes their existence in the game(s).

Country Road Game Nearby Cities
Belgium Autobahn A3 ETS 2 Liège
France Autoroute A3 ETS 2 Paris
Germany Autobahn A3 ETS 2 Frankfurt am Main, Nürnberg
Latvia Autoceļš A3 ETS 2 (Beyond the Baltic Sea) Rīga
Luxembourg Autoroute A3 ETS 2 Luxembourg (city)
Romania Autostrada A3 ETS 2 (Road to the Black Sea) Cluj-Napoca, Târgu Mureș
Switzerland Autobahn A3 ETS 2 Zürich
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