The Knife and the Butterfly is a young adult novel by Ashley Hope Pérez, published in 2011 by Carolrhoda Books. The novel, which explores the lives of two teenage gang members in Houston, a Hispanic boy named Azael and a White girl named Lexi, is based on a 2006 gang-related death in that city.

On June 6, 2006, a teenage boy named Gabriel Granillo was stabbed to death at Ervan Chew Park, in the Neartown district in Houston, Texas. His killer, Ashley Paige Benton, underwent a criminal murder trial which resulted in a hung jury. Benton's lawyers and the assistant Harris County district attorney agreed to give Benton probation in exchange for Benton pleading guilty to aggravated assault. Her probation was ended early in 2009, and her criminal charge was to be dismissed as part of terms of successfully completing her probation.