Hiss may refer to:
- An onomatopoeia for a type of noise comparable to white noise, such as the release of air brakes. The noise is characteristic of some snakes and also commonly produced by cats and people with a lisp.
- Tape hiss, high frequency noise present on analogue magnetic tape recordings
- Electronic circuit hiss, white noise present at low level in all electronic circuits
In people:
- Alger Hiss, a U.S. State Department employee and alleged spy for the Soviet Union
- Donald Hiss, younger brother of Alger Hiss
- King Hiss, the villainous king of the Snake Men in Mattel toyline Masters of the Universe
- Mike Hiss, a former driver in the USAC Championship Car series
- Sir Hiss, Prince John's fictional sidekick in the 1973 animated Disney movie Robin Hood
See also:
