| Osaka Municipal Subway 20 series | |
|---|---|
 A 20 series trainset on the Kintetsu Keihanna Line in December 2023 | |
| In service | 1984–March 2024 |
| Manufacturer | Hitachi, Kawasaki Heavy Industries, Kinki Sharyo, Tokyu Car Corporation |
| Constructed | 1984–1989 |
| Entered service | 24 December 1984 |
| Number built | 96 vehicles (16 sets)[1] |
| Number in service | None |
| Formation | 6 cars per trainset |
| Fleet numbers | 2601–2607, 2631–2639[2] |
| Operators | Osaka Municipal Transportation Bureau (1984–2018) Osaka Metro (2018–2024) |
| Depots | Morinomiya |
| Lines served | |
| Specifications | |
| Car body construction | Aluminium alloy |
| Doors | 4 pairs per side |
| Maximum speed | 95 km/h (59 mph) |
| Traction system | GTO–VVVF (as built)[1] IGBT–VVVF (after refurbishment) |
| Electric system(s) | 750 V DC |
| Current collector(s) | Third rail contact shoes |
| Safety system(s) | WS-ATC |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) |
The Osaka Municipal Subway 20 series (大阪市交通局20系) was a rapid transit electric multiple unit (EMU) train type operated by Osaka Municipal Subway (now Osaka Metro) in Japan between 1984 and 2024.