W11

W11 may refer to:

Aircraft

• Cierva W.11 Air Horse, a British helicopter
• Hansa-Brandenburg W.11, a German fighter floatplane
• Wolf W-11 Boredom Fighter, an American biplane

Automobiles

• Mercedes-Benz W11, a German roadster
• Mercedes-AMG F1 W11 EQ Performance, a racing car
• Nissan Avenir (W11), a station wagon

Other uses

• British NVC community W11, in the British National Vegetation Classification system
• Cuboctahedron
• LB&SCR A1X Class W11 Newport, a steam locomotive
• London Buses route W11
• W11 Opera, a British opera company renamed to London Youth Opera
• Windows 11, an operating system
• Winning Eleven, a soccer simulation game
• W11, a postcode district in London, England