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List of railway companies in Japan lists Japanese railway operators.
Those in italics are the third-sector operators; being half-public, half-private.
The Japan Railways Group consists of the seven companies that were formed after the privatization of the Japanese National Railways.
There were originally six Semi-Major Private Railways, but Nankai Electric Railway was reclassified as a Major Private Railway at an unknown date[citation needed] bringing the list to five companies. On April 1, 2025, the list further reduced to 3 companies with the following company mergers: Shin-Keisei Electric Railway merged with parent company Keisei Electric Railway[1], and Semboku Rapid Railway merged with parent company Nankai Electric Railway.[2][3]
From north to south by prefecture where railway operations are headquartered. Category-3 railway operators and subsidiary companies are not listed. Some English names are unofficial.
Those with English articles are listed here.