List of bus operating companies in Japan lists Japanese bus operators. The list includes companies operating now. Operators are listed from north to south by prefecture of its headquarter.
The list includes transit buses, highway buses, or sightseeing buses. Operators of lines not open to passers-by, such as charter only companies, or schools operating school buses are not listed.
The list also excludes community bus (コミュニティバス komyunitī basu) lines. It refers to feeder bus transits with usually smaller vehicles, operated by municipalities. See ja:日本のコミュニティバス一覧 for the list. "Normal" municipal bus transits (kōei basu (公営バス), such as Toei Bus of Tōkyō) are listed here.
Trolleybuses and guided buses are listed in the List of railway companies in Japan, as they are classified as railway in the country.
For the operators in Kantō and Kansai, accepted fare collection cards are indicated as below. Other operators may accept different cards.
English names might be tentative.
| List of bus operating companies in Japan | |
|---|---|
| East | Hokkaidō, Tōhoku, Kantō, and Chūbu |
| West | Kansai, Chūgoku, Shikoku, and Kyūshū |