9000 series may refer to:
Train types Japanese train types Chiba New Town Railway 9000 series electric multiple unit train Hankyu 9000 series electric multiple unit train Hanshin 9000 series electric multiple unit train, operated by Hanshin Electric Railway Keihan 9000 series electric multiple unit train Keio 9000 series electric multiple unit train Kintetsu 9000 series electric multiple unit train, operated by Kintetsu Railway Kita-Osaka Kyuko 9000 series electric multiple unit train Nankai 9000 series electric multiple unit train, operated by Nankai Electric Railway Nishitetsu 9000 series electric multiple unit train Odakyu 9000 series electric multiple unit train, operated by Odakyu Electric Railway Sapporo Municipal Subway 9000 series electric multiple unit train Seibu 9000 series electric multiple unit train Sotetsu 9000 series electric multiple unit train Tobu 9000 series electric multiple unit train Toei 9000 series tramcar Tokyo Metro 9000 series electric multiple unit train Tokyu 9000 series electric multiple unit train, operated by Tokyu Corporation
Korean train types Seoul Metro 9000 series
Latin American and Spanish train types Barcelona Metro 9000 Series for the Barcelona, Santo Domingo, and Lima Metros
Computing UNIVAC 9000 series
See also 900 series (disambiguation)