|Flag of Barcelona|
|Adopted||April 13, 2004|
|Designed by||Catalan Vexillological Association|
The flag of Barcelona, Catalonia, Spain, is a quarterly with the upper left and lower right cantons with the cross of Saint George, and the upper right and lower left cantons with nine equal vertical stripes alternating yellow and red.
The yellow and red stripes are the stripes of Catalonia.