A diminished guitar chord is also written as Adim or Ao or Am♭5.
Guitar chords chart for A diminished chord with suggested finger positions on the guitar fretboard is shown below.
C - D - E - F - G - A - B - C♯ - D♯ - F♯ - G♯ - A♯ - D♭ - E♭ - G♭ - A♭ - B♭
Download GtrLib Chords app to view all the positions of A diminished chord on the guitar along with audio demonstration of the chord at each position.
A major
A minor
A5
A dominant 7th
A major 7th
A minor 7th
A minor major 7th
A suspended 4th
A suspended 2nd
A6
A minor major 6
A9
A minor 9
A minor major 9
A11
A minor 11
A major 11
A minor major 11
A major add 9
A minor add 9
A6 add 9
A minor 6 add 9
A dominant 7th add 11
A major 7th add 11
A minor 7th add 11
A minor major 7th add 11
A dominant 7th add 13
A major 7th add 13
A minor 7th add 13
A minor major 7th add 13
A dominant 7th flat 5
A augmented
A augmented 7th
A dominant 7th flat 9th
A dominant 7th sharp 9th
A augmented 7th flat 9th
A minor 7th flat 5
A minor 7th sharp 5
A minor 7th flat 9th
A6 suspended 4th
A6 suspended 2nd
A dominant 7th suspended 4th
A dominant 7th suspended 2nd
A major 7th suspended 4th
A major 7th suspended 2nd
A diminished
A diminished 7th