The double harmonic major scale is a musical scale with a flattened second and sixth degree. This scale is enharmonic to the Mayamalavagowla raga, Bhairav raga, Byzantine scale, Arabic scale (Hijaz Kar), and Gypsy major scale. It can be likened to a gypsy scale because of the diminished step between the 1st and 2nd degrees. Arabic scale may also refer to any Arabic mode, the simplest of which, however, to Westerners, resembles the double harmonic major scale.

The sequence of steps comprising the double harmonic scale is :

Or, in relation to the tonic note

However, this scale is commonly represented with the first and last half step each being represented with quarter tones:^{[citation needed]}

The non-quarter tone form is identical, in terms of notes, to the North Indian Thaat named Bhairav and the South Indian (Carnatic) Melakarta named Mayamalavagowla.

The double harmonic scale is arrived at by either:

It is referred to as the "double harmonic" scale because it contains two harmonic tetrads featuring augmented seconds. By contrast, both the harmonic major and harmonic minor scales contain only one augmented second, located between their sixth and seventh degrees.

There is a variation of the double harmonic major scale called Double Harmonic Majorb7, which is also the fifth mode of the harmonic minor scale. This variation is sometimes confused with the double harmonic major scale because many sources refer to it simply as "double harmonic major" without indicating the "b7" sign. The primary difference between these two scales is the seventh degree, with the double harmonic majorb7 scale having a flat seventh (♭7) and the Double Harmonic Major having a natural seventh (7).