Flag of Budapest

{{Infobox flag

| Name = City of Budapest

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| Image = Flag of Budapest (2011-).svg

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| Proportion = 2:3

| Adoption = 15 September 2011

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| Design = Budapest's coat of arms on a white field, with alternating red and green triangles on the top and bottom edges

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| Image2 = Flag of Budapest (construction sheet).svg

| Imagetext2 = Construction sheet of the flag

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The flag of Budapest is the official municipal flag of Budapest, Hungary. The current design features the city's coat of arms on a white field. The top and bottom edges of the flag are occupied by alternating red and green isosceles triangles. It has been in effect since 15 September 2011, following a decree from the General Assembly of Budapest.

Design and symbolism

The 11 triangles (6 red, 5 green) on the top and bottom edges span the whole length of the flag and have a height of one-tenth that of the flag. The colours red, white, and green represent the national colours of Hungary,{{cite web |title=48/2011. (IX. 15.) Főv. Kgy. rendelet |url=https://hu.wikisource.org/wiki/48/2011._(IX._15.)_F%C5%91v._Kgy._rendelet |website=Wikisource |accessdate=21 May 2020}} as featured on the nation's flag. The colours as used on Hungary's flag symbolize strength (red), faithfulness (white), and hope (green). The coat of arms, first created in 1873,{{cite book |last1=Czaga |first1=Viktória |title=Budapest arms & colours. Throughout the centuries |date=1998 |url=https://library.hungaricana.hu/en/view/BFLV_Sk_09_Arms/?pg=12&layout=s |accessdate=21 May 2020}} depicts two castles on a red field, with the one-tower castle on top representing Pest, and the three-towered castle on the bottom representing Buda and Óbuda. Separating the two castles is a wavy white line, representing the Danube. Surrounding this shield is a lion on its hind legs to the left and a mythological gryphon to the right. On top of the shield is the Holy Crown of Hungary.{{cite web |title=5/1990. (IX. 30.) Főv. Tan. rendelet |url=https://hu.wikisource.org/wiki/5/1990._(IX._30.)_F%C5%91v._Tan._rendelet |website=Wikisource |accessdate=21 May 2020}} The shield is about one-third the height of the flag.