Knife Edge

Arts
Knife Edge, Knife-edge, or Knife's Edge may refer to:
 * Knife Edge (film), a 2009 British thriller about gaslighting
 * "Knife-Edge" (Emerson, Lake & Palmer song)
 * Knife Edge: Nose Gunner, a video game
 * Young Sherlock Holmes: Knife Edge, a 2003 book in the Young Sherlock Holmes book series
 * Standing Figure: Knife Edge, a bronze sculpture by Henry Moore
 * Knife Edge Two Piece 1962–65, an abstract bronze sculpture by Henry Moore
 * Knife Edge, a 2004 novel in the Noughts & Crosses novel series
 * "Knife Edge", a song by The Alarm from Strength

Places

 * Knife's Edge, a bridge in the Zambezi River near Victoria Falls in Zambia
 * Knife Edge, a hiking trail on Mount Katahdin, ME, US

Others

 * Knife-edge effect, a redirecting of radiation from striking an obstacle
 * Knife-edge flight, a radio controlled aerobatic maneuver
 * Knife-edge scanning microscope
 * On a Knife Edge (documentary), a 2017 film about Native Americans
 * Knife-edge measurement in statistics