QS may refer to:
QS World University Rankings is an annual publication of university rankings by Quacquarelli Symonds (QS).
Glutamine Serine Rich Protein 1 or QSER1 is a protein encoded by the QSER1 gene.The function of this protein is currently unknown.
In amateur radio Morse code operations, QSK or full break-in operation describes an operating mode in which the transmitting station can detect signals from other stations between the elements (dots and dashes) or letters of the Morse transmission.
A QSL card is a written confirmation of either a two-way radiocommunication between two amateur radio stations or a one-way reception of a signal from an AM radio, FM radio, television or shortwave broadcasting station.
The QSZ-92 (Chinese: 92式手枪; pinyin: Jiǔ Èr Shí Shoǔqiàng or Jiǔ Shí Èr Shi Shoǔqiàng; literally: 'Type 92 Handgun') is a semi-automatic pistol designed by Norinco.
QSC, LLC is an American manufacturer of audio products including power amplifiers, loudspeakers, digital mixers and digital signal processors including the Q-Sys networked audio, video and control platform.
QSR International is a qualitative research software developer based in Melbourne, Australia, with offices in the United Kingdom, and the United States.