Madame X (disambiguation)

Madame X is a 1908 stage play with numerous adaptations. It may also refer to:

• Madam X (band), an American glam metal band
• Madame X (funk band), an American funk band founded by Bernadette Cooper
• Madam X (film), a 1952 Philippine motion picture
• "Portrait of Madame X", a portrait of Virginie Amélie Avegno Gautreau by John Singer Sargent
• A character played by Anne Brochet in The Story of Marie and Julien