Knife play is a form of consensual BDSM edgeplay involving knives, daggers, and swords as a source of physical and mental stimulation. Knives are typically used to cut away clothing, scratch the skin, remove wax after wax play, or simply provide sensual stimulation. Knife play can also be a form of temperature play or body modification. Knife play is not intended to perform self harm.

• Miranda Austin and Sam Atwood (2005). The Toybag Guide to Erotic Knifeplay. San Francisco: Greenery Press. ISBN 1-890159-66-2. ISBN 978-1-890159-66-5. OCLC 60419183.