This is similar to the main Manual of Style and Manual of Style (Japan-related articles), and is intended to augment them for use in articles about Trains in Japan.

The following is excerpted from the Manual of Style for Japan-related articles:

• The default name is X Station.
• When necessary, disambiguate by geographical location: Y Station -> Y Station (Prefecture) -> Y Station (Prefecture, City).
• Stations on private lines that have the same name as other train or subway stations in the same prefecture are disambiguated as Z Station (PrivateCo). For example, there are two stations named Asakusa Station both located in Asakusa, Tokyo. One is an interchange station of 3 different train companies and one is a smaller station of the Tsukuba Express. The major station is default Asakusa Station while the Tsukuba Express station is Asakusa Station (Tsukuba Express).

Currently, railway line names are in the form Y Line (translated from Y線, -sen). Train lines referred to as Z本線 (-honsen) in Japanese are given the form Z Main Line.

In cases where there are two or more train lines of the same name, the name of the region/prefecture is added after the name. For example, Namboku Line (Kobe).

Note: There appears to be no consensus about line names. They are being discussed at Wikipedia Talk:WikiProject Trains in Japan.

The following style conventions are suggested for the names of rolling stock articles. With the exception of shinkansen types, however, these conventions are still under discussion at Wikipedia Talk:WikiProject Trains in Japan.

• Shinkansen: "0 Series Shinkansen"
• Diesel locomotives: "JNR Class DD51" for JNR, "JR Freight Class DF200" for post-privatization locos
• Electric locomotives: "JNR Class EF58" for JNR, "JR Freight Class EH200" for post-privatization locos
• EMUs: "E233 series" (Rolling stock for private railways should be prefixed with the railway name (e.g. "Odakyū 50000 Series EMU")
• DMUs: "KiHa E200" where "形" is used in the Japanese, and "KiHa E130 series" where "系" is used.
• Passenger cars: "E26 series passenger car"
• Freight cars: "KoKi106 freight car"