Betrayer is someone who has caused a betrayal. It also may refer to:

• Betrayer (novel), a novel by C. J. Cherryh
• The Betrayers, Matt Helm spy novel

• Betrayer (film), a 2020 Czech film
• The Betrayer, a 1921 Australian-New Zealand film
• Betrayer (video game), a first-person action-adventure video game released in 2014

• Betrayer (Argentinian band), a female fronted groove metal band from Buenos Aires, Argentina, supplemented by Johan Liiva

This disambiguation page lists articles associated with the title Betrayer.
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