Con sordino is a musical instruction telling a musician to use a mute.
Con sordino can also refer to: An instruction for a pianist to use the soft pedal which mutes the instrument An instruction for guitarists to dampen the sound using the palm method to slightly deadening the stings Sordun, a family of archaic double-reed instruments Surdellina or Sordellina, a 17th-century bagpipe kit violin, a small string instrument Clavichord (from its quiet sound)