Hiss or Hissing may refer to: Hiss (electromagnetic), a wave generated in the plasma of the Earth's ionosphere or magnetosphere Hiss (surname) Hissing (manhwa), a Korean manhwa series by Kang EunYoung Noise (electronics) or electronic circuit hiss, white noise present at low level in all electronic circuits Sibilant, a group of consonants that have a hissing or hushing sound Tape hiss, high-frequency noise on analogue magnetic tape recordings The Hiss, a five piece rock band from Atlanta, Georgia Honda Ignition Security System, a vehicle immobiliser A sound made by snakes and various other animals as a warning; see List of animal sounds In fiction King Hiss, the villainous king of the Snake Men in Mattel toy line Masters of the Universe Sir Hiss, Prince John's fictional sidekick in the 1973 animated Disney movie Robin Hood H.I.S.S., High Speed Sentry, a fictional vehicle in the G.I. Joe universe See also His (disambiguation) Animal communication, including hissing to deter predators