The Osaka Municipal Subway New 20 series (大阪市交通局新20系) is a rapid transit electric multiple unit (EMU) train type operated by Osaka Municipal Subway in Japan since 1990.

The New 20 series was developed from the earlier 20 series trains introduced on the Chūō Line from 1984.

Trains are formed as follows.

[1] Car 6 is designated as a women-only car (Weekday only).

22 series car 3 is designated as a women-only car (Rush hour only).