The A1 motorway (Bosnian: Autocesta A1, Serbian Cyrillic: Аутопут A1, romanized: Autoput A1) is a motorway in Bosnia and Herzegovina that is part of the European route E73 and, together with Croatian motorways A10 and A5, and the Hungarian M6, will provide a modern and fast road connection from Budapest to Ploče, a seaport on the Adriatic Sea.

The motorway will connect the capital Sarajevo with other large cities, such as Mostar and Zenica.

It will also be the main link to Bosnia and Herzegovina from the Adriatic Sea and Central Europe.

Its construction is expected to enhance economic and social activities, and will connect Bosnia and Herzegovina with the major European traffic network.

[citation needed] Since the beginning proposed route for the A1 highway on corridor Vc was under heavy criticism from environmentalists, groups and concerned citizens, as well as some factions in academic community and media, for its encroachment[5] on many already highly endangered natural phenomena, habitats and to significant extent on specific way of human life in traditional communities in relationship with characteristic Dinaric karst milieu[6][7][8] and its characteristic biotope, hydrogeology and topography.