| 大阪市交通局 Ōsaka-shi Kōtsū-kyoku | |
 "Mio-den". All Osaka Metro train cars retain this logo. | |
| Former government agency of Osaka overview | |
|---|---|
| Formed | 12 September 1903 |
| Dissolved | 31 March 2018 |
| Superseding Former government agency of Osaka | |
| Jurisdiction | Osaka |
| Headquarters | Nishi-ku, Osaka |
| Website | kotsu |
Osaka Municipal Transportation Bureau (大阪市交通局, Ōsaka-shi Kōtsū-kyoku) was the public department of transportation of the city of Osaka, Japan that existed from 1903 to 2018. It operated the municipal subway lines, the New Tram, and the city buses that have replaced the remaining lines of the municipal tram network.
On April 1, 2018, the bureau was split into two private companies: Osaka Rapid Electric Tramway K.K. (known as Osaka Metro) and Osaka City Bus.