Madame X (disambiguation)

Madame X is a 1908 stage play with numerous adaptations.

Madame X or Madam X may also refer to:
 Madam X (band), an American glam metal band
 Madame X (band), an American funk/R&B band with an eponymous 1987 album release
 Portrait of Madame X, an 1884 portrait of Virginie Amélie Avegno Gautreau by John Singer Sargent
 Madame X (character), a character played by Anne Brochet in The Story of Marie and Julien
 Madame X (device), a bombe cryptanalyser used by the US Army during World War II
 Madame Xanadu, a 2012 comic called "Madame X" which featured this character under DC's "National Comics" imprint
 Madame X (album), 2019 studio album by Madonna
 Madame X Tour, associated concert tour

Film
 Madame X (1916 film), starring Dorothy Donnelly
 Madame X (1920 film), starring Pauline Frederick
 Madame X (1929 film), starring Ruth Chatterton
 Madame X (1937 film), starring Gladys George
 The Trial of Madame X, 1948 film
 The Strange Madame X, 1951 film
 Madame X (1952 film), starring Gloria Romero
 Madame X (1954 film), a Greek drama film
 Madame X (1955 film), a Mexican drama film
 Madame X (1966 film), starring Lana Turner
 Madame X: An Absolute Ruler,  1978 German fantasy film directed by Ulrike Ottinger
 Madame X (1981 film), starring Tuesday Weld
 Madam X (1994 film), starring Rekha
 Madame X (2000 film), starring Ina Raymundo

See also
 Miss X (disambiguation)
 Lady X (disambiguation)
 Mister X (disambiguation)