W8

W8 or W-8 may be:
 * W8, a postcode district in the W postcode area
 * W8 engine, an eight-cylinder piston engine in a W configuration
 * Cargojet, IATA airline designator
 * Worms 3D, the eighth game in the Worms series
 * Vector W8, a sports car produced by Vector Aeromotive
 * London bus W8, a London bus route
 * a specific size of I-beam
 * Windows 8, an operating system
 * W8 (loading gauge) on the British rail system
 * W8 (tram), a class of electric trams modified by Yarra Trams from SW6, W6 and W7 trams.
 * Form W-8, a series of IRS tax forms