W, or w, is the twenty-third letter of the English alphabet.

W may also refer to:

Arts and entertainment edit

Books and magazines edit

Film and television edit

Music edit

Broadcasting edit

Organizations and businesses edit

Science and technology edit

Computing edit

  • w (Unix), a command to list logged in users on Unix-like systems
  • W Window System, a graphical windowing system for Unix platforms
  • Algorithm W, or the Hindley–Milner type inference algorithm

Transportation edit

Other uses edit

See also edit