Autostrada A58

{{Short description|Controlled-access highway in Italy}}

{{Use dmy dates|date=June 2024}}

{{Infobox road

|country=ITA

|type=A

|route=58

|alternate_name=Tangenziale Est Esterna di Milano
Milan external east ring road

|established=2014

|beltway_city=Milan

|direction_a=North

|terminus_a=Agrate Brianza

|junction=23px A4 in Agrate Brianza
23px A35 in Liscate
23px A1 in Cerro al Lambro

|direction_b=South

|terminus_b=Cerro al Lambro

|length_km=32

|regions=Lombardy

|map= Italia - mappa autostrada A58.svg

|previous_type=A

|previous_route=57

|next_type=A

|next_route=59

}}

File:Mappa autostrada A58.svg

Autostrada A58 or Tangenziale Est Esterna di Milano ("Milan external east ring road") is an autostrada (Italian for "motorway") {{convert|32|km}} long in Italy located in the region of Lombardy. It is the second east ring road of Milan after the Autostrada A51, managed by the company Tangenziale Esterna S.p.a. The Autostrada A58 ring road connects, on the east side of Milan, the Autostrada A4 with the Autostrada A1 via the Autostrada A35.

Together with the Autostrada A50 (Milan west ring road), the Autostrada A51 (Milan east ring road) and the Autostrada A52 (Milan north ring road), it is the largest system of ring roads around a city in Italy, for a total length greater than {{convert|100|km}}.{{cite web|url=https://www.milanocittastato.it/evergreen/forse-non-sapevi-che/7-curiosita-sulla-tangenziali-di-milano/|title=7 cose che forse non sapevi delle TANGENZIALI di Milano|access-date=13 June 2024|language=it}} By adding the urban sections of Autostrada A1 and Autostrada A4, which runs parallel to the Milan north ring road by connecting Autostrada A51, Autostrada A50 and Autostrada A58, to the four ring roads, a system of urban highways that totally surrounds the city.