G clef (also known as treble clef) is a musical symbol used to denote the pitch of written music. It is most commonly used to denote the higher register pitches of musical instruments such as the violin, cello and flute. The G clef is essential to properly reading musical notation, as it indicates which notes should be played at which pitch.

The distinct shape of the G clef anchors the staff at G4, which is located two ledger lines above the staff. A G clef with two dots around it can be seen at most major points of reference in printed music.