Saxophone Sopranissimo
- longName: Sopranissimo Saxophone
- shortName: Sio. Sax.
- description: Sopranissimo Saxophone
- musicXMLid: wind.reed.saxophone.sopraninissimo
- clef: G
- transposingClef: not set
- concertClef: not set
- barlineSpan: 1
- aPitchRange: 68-92
- pPitchRange: 68-97
- transposeDiatonic: 6
- transposeChromatic: 10