Aliados is an underground light rail station on line D of the Porto Metro system in Porto, Portugal.

It is situated to the south of Porto City Hall [pt] and under the Avenida dos Aliados [pt], one of central Porto's main streets, from which it takes its name.

[1][2] The central tunnelled section of line D, including Aliados station, opened on 17 September 2005, with trains initially running between Câmara de Gaia, to the south, and Pólo Universitário to the north.

The line has since been extended from Câmara de Gaia to Vila d’Este, and from Pólo Universitário to Hospital de São João.

Porto tram line 22 also stops at the Avenida dos Aliados near the station.