English: It is a flag that was displayed on all three Diapontia Islands of Corfu unit, Greece, (Othonoi, Mathraki, Ereikoussa)

The flag of the Diapontian Islands bears a blue cross symbolizing Christianity on a red background. It is obviously inspired by the colors of the flag of the Ionian Islands under British Empire and later of Corfu. In the center dominates the letter "Δ" (D) representing the word "Diapontia" which is surrounded by laurels which symbolizes the fraternal relations between the inhabitants of the Diapontian Islands. Above the laurels there are three gold-colored stars representing each Diapontian Island.

It is under use until today.