800 series may refer to:
Japanese train types 800 Series Shinkansen Chichibu Railway 800 series electric multiple unit Choshi Electric Railway 800 series electric multiple unit Keihan 800 series electric multiple unit Keikyu 800 series electric multiple unit Shin-Keisei N800 series electrical multiple unit Tobu 800 series, a variant of the Tobu 8000 series electric multiple unit
Other GeForce 800M series of graphics processing units ThinkPad 800 series, a line of laptop computers Rover 800 Series car Sony Vaio 800 series computers
See also British Rail Class 800 800 (disambiguation)