W13

W13 may refer to:


 * British NVC community W13, one of the woodland communities in the British National Vegetation Classification system
 * Eagle's Nest Airport (Virginia), in Augusta County, Virginia, United States
 * Hansa-Brandenburg W.13, a German flying boat bomber
 * London Buses route W13
 * Mercedes W13, a racing car
 * Rhombicuboctahedron
 * Route W13 (WMATA), a former bus route in Maryland
 * W-13-class minesweeper of the Imperial Japanese Navy
 * W13 nuclear warhead
 * Watjanti language
 * W13, a postcode district in London, England