Line 2 of the Saint Petersburg Metro, also known as Moskovsko-Petrogradskaya Line (Russian: Моско́вско-Петрогра́дская ли́ния) or Blue Line, is a second oldest rapid transit line in Saint Petersburg, Russia, opened in 1961, which connects city centre with the northern and southern districts. It featured the first cross-platform transfer in the USSR. It was also the first metro line in Saint Petersburg to feature a unique platform type that soon became dubbed as «Horizontal Lift». The line cuts Saint Petersburg on a north-south axis and is generally coloured blue on Metro maps. In 2006, as an extension was opened, it became the longest line on the system.
- Tekhnologicheskiy institut
- Frunzenskaya
- Moskovskiye Vorota
- Elektrosila
- Park Pobedy
- Petrogradskaya
- Gorkovskaya
- Nevsky Prospekt
- Sennaya Ploshchad
- Moskovskaya
- Zvyozdnaya
- Kupchino
- Udelnaya
- Pionerskaya
- Chyornaya Rechka
- Prospekt Prosvescheniya
- Ozerki
- Parnas