The Betrayal of Bindy Mackenzie, (also The Murder of Bindy MacKenzie in the US and Becoming Bindy MacKenzie in the UK) is a 2006 novel for young adults by Jaclyn Moriarty. It is the third of a series set in the north-western suburbs of Sydney, where the author grew up. The story focuses on a minor character from Moriarty's second young adult novel, Finding Cassie Crazy. The story is told through letters, memos and transcripts, similar to the structure of other novels by the author.