QSS may refer to:
*
Quantum Secret Sharing, a quantum cryptographic scheme for secure communication
*
Queensway Secondary School
Queensway Secondary School (QSS) is a co-educational government secondary school in Queenstown, Singapore. It offers a four to five-year course leading to the Singapore-Cambridge GCE Ordinary Level or Singapore-Cambridge GCE Normal Level examinati ...
, a co-educational government secondary school in Queenstown, Singapore
* QSS, the station code for
Qila Sattar Shah railway station, Sheikhupura District, Pakistan
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