W Senarai_penggubah_muzik_klasikal_abad_ke-20

  • Gregg Wager (lahir 1958)
  • Henry Walford Davies (1869–1944)
  • George Walker (1922- )
  • William Walton (1902–1983)
  • Robert Ward (lahir 1917)
  • David Ward-Steinman (lahir 1936)
  • Peter Warlock (1894–1930)
  • Franz Waxman (1906–1967)
  • Anton Webern (1883–1945)
  • Paul Wehage (lahir 1963)
  • Kurt Weill (1900–1950)
  • Mieczysław Weinberg (1919–1996)
  • John Weinzweig (1913–2006)
  • Judith Weir (lahir 1954)
  • Egon Wellesz (1885–1974)
  • Felix Werder (lahir 1922)
  • Richard Wetz (1875-1935)
  • Paul W. Whear (lahir 1925)
  • Eric Whitacre (lahir 1970)
  • Gillian Whitehead (lahir 1941)
  • Healey Willan (1880–1968)
  • Alberto Williams (1862–1952)
  • Clifton Williams (composer)|Clifton Williams (1923–1976)
  • John Williams (lahir 1932)
  • Malcolm Williamson (1931–2003)
  • Olly Woodrow Wilson (19?- )
  • Dag Wirén (1905–1986)
  • Daniel James Wolf (lahir 1961)
  • Julia Wolfe (lahir 1958)
  • Christian Wolff (composer)|Christian Wolff (lahir 1934)
  • Ermanno Wolf-Ferrari (1876–1948)
  • Stefan Wolpe (1902–1972)
  • Haydn Wood (1882–1959)
  • Charles Wuorinen (lahir 1938)