Unfaithful may refer to:

• Unfaithful (1918 film), a silent shot film directed by Thomas H. Ince and Charles Miller
• Unfaithful (1931 film), a 1931 film directed by John Cromwell
• The Unfaithful a 1947 film noir
• Unfaithful (film), a 2002 film starring Diane Lane and Richard Gere
• "Unfaithful" (song), a 2006 song by Rihanna
• "Unfaithful" (House), a fifth season episode of House
• Unfaithful (film), a 2009 film directed by Claude Pérès starring Marcel Schlutt and Claude Pérès

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.