M5 is the newest of the five lines of the Bucharest Metro, opened on 15 September 2020.

In the first phase (6.87 km (4.3 mi)), it runs from Eroilor to Râul Doamnei, and to Valea Ialomiței, in the Drumul Taberei neighbourhood.

[3] Opened on 15 September 2020, the first section, Râul Doamnei to Eroilor is around 7 km (4.3 mi) long with 10 stations.

Until 2023, when new Alstom Metropolis French trains for this line are meant to arrive, 8 Canadian Bombardier Movia 346 train sets are used, redistributed from M3.

Stations and lines in italics are planned or under construction.