The following diagram displays all the places where the note C# (C sharp) can be played on the guitar fretboard, within the first 15 frets.

The C# note can be played on the guitar on the following strings/frets:
- On the 9th fret of the 6th string.
- On the 4th fret of the 5th string.
- On the 11th fret of the 4th string.
- On the 6th fret of the 3rd string.
- On the 2nd fret and on the 14th fret of the 2nd string.
- On the 9th fret of the 6th string.