| Flag | Date | Use | Description |
| 1957/1958– | Flag of the Benelux | Combines features from the flags of the member countries: Belgium, the Netherlands and Luxembourg |
| 2015 | Flag of the Central Commission for Navigation on the Rhine | |
| 1990s– | Flag of the Central European Free Trade Agreement | |
| 1991– | Flag of the Commonwealth of Independent States | The flag of the Commonwealth of Independent States is blue with the emblem of the organisation in the centre. |
| 1955– | Flag of the Council of Europe | A circle of 12 upward-oriented 5-pointed golden stars centred on a blue field: represents the continent beyond the organisations as the Flag of Europe |
| 1986– | Flag of the European Union | A circle of 12 upward-oriented 5-pointed golden stars centred on a blue field: represents the continent beyond the organisations as the Flag of Europe |
| 1984– | Flag of the Nordic Council | White stylised swan in a white circle upon a blue background. |
| 1986– | Flag of the Sami people | |
| 2006– | Flag of the European Gendarmerie Force | |
| 2006– | Flag of the European Maritime Force | |
| Flag | Date | Use | Description |
| 1921 – | Flag of Burgenland | A horizontal bicolor of yellow and red. |
| 1946 – | Flag of Carinthia | A horizontal tricolor of yellow, red and white. |
| 1954 – | Flag of Lower Austria | A horizontal bicolor of blue and yellow. |
| 1921 – | Flag of Salzburg | A bicolor of red over white. |
| 1960 – | Flag of Styria | A bicolor of white over green. |
| 1945 – | Flag of Tyrol | The flag of Tyrol is a white over red bicolor. |
| 1949 – | Flag of Upper Austria | The flag of Upper Austria is a white over red bicolor. |
| 1938 – | Flag of Vorarlberg | A bicolor of red over white. |
| 1844 – | Flag of Vienna | A bicolor of red over white. |
| Flag | Date | Use | Description |
| | Flag of Central Finland | A banner of arms based on the region's coat of arms. Ratio: 1:1 |
| | Flag of Central Ostrobothnia | A banner of arms based on the region's coat of arms |
| 1998– | Flag of Kainuu | A banner of arms based on the region's coat of arms designed by a Finnish heraldist Olof Eriksson in 1978. The flag itself was adopted in 25.6.1998. |
| 1997- | Flag of North Karelia | A red flag featuring two armored arms from the regional coat of arms with a fortressy white field on the hoist side of the flag. Adopted by the regional council on 8.6.1997. |
| | Flag of Northern Savonia | A black swallow-tailed flag featuring a loaded bow from the regional coat of arms placed between two yellow stripes. |
| | Flag of Päijänne Tavastia | A banner of arms based on the region's coat of arms. |
| 2018- | Flag of Tavastia Proper | Flag featuring elements from the region's coat of arms. Designed by heraldist Tuomas Hyrsky and adopted by the regional council on the 100th anniversary of the Finnish flag on 28.5.2018. A further ceremony was held in the Häme Castle on 4.2.2019. |
| 1990- | Flag of Satakunta | A swallow-tailed banner of arms based on the region's coat of arms from 1557. Designed by artist Reino Niiniranta and officially adopted on 21.11.1990. The regional flag's official flag day is on 11 October, on the name day of Otso. |
| | Flag of Uusimaa | A banner of arms based on the region's coat of arms. |
| Flag | Date | Use | Description |
| 2016- | Flag of Auvergne-Rhône-Alpes | |
| 2016- | Flag of Bourgogne-Franche-Comté | |
| 1923 – | Flag of Brittany | The flag, called Gwen ha du was created in 1923 by Morvan Marchal. He used as his inspiration the old Breton flag, called Kroaz Du, and the flags of the United States and Greece as these two countries were seen at that time as the respective symbols of liberty and democracy. The nine horizontal stripes represent the traditional dioceses of Brittany into which the duchy was divided historically. The five black stripes represent the French or Gallo speaking dioceses of Dol, Nantes, Rennes, Saint-Malo and Saint-Brieuc—while the four white stripes represent the Breton speaking dioceses of Trégor, Léon, Cornouaille and Vannes. The ermine canton recalls the ducal arms of Brittany. |
| | Flag of Centre-Val de Loire | |
| 1755 – | Flag of Corsica | The Flag of Corsica was adopted by General of the Nation Pasquale di Paoli in 1755 and was based on a traditional flag used previously. It portrays a Moor's Head in black wearing a white bandana above his eyes on a white background. Previously, the bandana covered his eyes. |
| | Flag of Île-de-France | |
| | Flag of Normandy | |
| 2016- | Flag of Nouvelle-Aquitaine | |
| 12th century – | Flag of Occitanie | Flag of the administrative region of Occitanie.
Flags of historical Occitania and Catalonia can be displayed according to the place on local buildings, and both of them on regional buildings. |
| | Flag of Pays-de-la-Loire | The flag is a combination of heraldic elements from the historical provinces that occupied the territory of the region: Brittany, Anjou, Maine and Vendée. |
| 12th century – | Flag of Provence-Alpes-Côte d'Azur | Combining elements of the former historical entities existing over the current territory of the region: County of Provence, the Dauphiné and County of Nice. |
| Flag | Date | Use | Description |
| 1954 – | Flag of Baden-Württemberg | A black over gold bi-color. |
| 1953 – | Flag of Bavaria | There are two official flags of Bavaria. One is an array of 21 or more lozenges of blue and white, the other is a white over blue bicolor. |
| 1954 –1990
1990 – | Flag of Berlin | White with red bars at the top and bottom, with a bear off-centre towards the hoist. |
| 1991 – | Flag of Brandenburg | A horizontal bi-color of red over white, with the arms of the state, in the center. |
| 1952 – | Flag of Bremen | Eight or more alternating red and white stripes, checked at the hoist. |
| 1751 – | Flag of Hamburg | A white castle with three towers and a closed gate. |
| 1948 – | Flag of Hesse | The state flag of Hesse consists of a bicolor of a red top and a bottom white stripe. |
| 1951 – | Flag of Lower Saxony | The flag of Lower Saxony consists of the flag of the Federal Republic of Germany in Schwarz-Rot-Gold, with the coat of arms of Lower Saxony, shifted slightly toward the hoist. |
| 1990 – | Flag of Mecklenburg-Western Pomerania | |
| 1953 – | Flag of North Rhine-Westphalia | A horizontal tricolour of green, white, and red. |
| 1945 – | Flag of Rhineland-Palatinate | The flag of Rhineland-Palatinate is a tricolor of three horizontal bands of black, red and gold. These colors are Germany's national colors and are sometimes referred to as schwarz-rot-gold. In the canton, or the upper left corner, are the arms of the state of Rhineland-Palatinate. |
| 1957 – | Flag of Saarland | The flag of Saarland is based on the flag of Germany and is a black, red, and gold horizontal tricolor. In the center of the flag is the coat of arms of Saarland. |
| 1991 – | Flag of Saxony | A bicolour of white over green. |
| 1991 – | Flag of Saxony-Anhalt | The state flag of Saxony-Anhalt is a yellow and black bi-color. In the center of the flag is the coat of arms of Saxony-Anhalt |
| 1948 – | Flag of Schleswig-Holstein | The state flag of Schleswig-Holstein is a horizontal tricolour of blue, white, and red. |
| 1991 – | Flag of Thuringia | The state flag of Thuringia consists of a bicolor of a white top and a bottom red stripecentre. |
| Flag | Date | Use | Description |
| 1980s – | Flag of Macedonia | The flag of Macedonia, adopted in 1980s, is a blue banner featuring the Vergina Sun, the emblem of the Ancient Greek Kingdom of Macedon. |
| 1821 – | Flag of Spetses | The flag of Spetses, adopted in early 1821 during the Greek Revolution, features an azure field surrounded by a thick red border, defaced with a Cross on an overturned Crescent, a spear, an anchor, a snake around the anchor, a dove and the words «ΕΛΕΥΘΕΡΙΑ Ή ΘΑΝΑΤΟΣ», meaning "FREEDOM OR DEATH", Greece's National Motto. |
| 1821 – | Flag of Hydra | The flag of Hydra, adopted in early 1821 during the Greek Revolution, its design and symbolism are almost identical to those of the Flag of Spetses, though the colours are slightly different. The Symbols are also almost identical, though instead of a spear there is a flagpole with a flag and some of the symbols are grey instead of red. |
| 1828 – | Flag of Kastellorizo | The flag of Kastellorizo, adopted in early 1828 during the Greek Revolution, it features a white field surrounded by a blue border. It is defaced with a Cross, an Anchor and a Heart. On the left and right of these symbols are the words «ΜΕΓΙΣΤΗ» and «ΚΑΣΤΕΛΛΟΡΙΖΟ», the two names of the island. |
| 1864 – | Flag of Corfu | The flag of the island of Corfu, adopted in 1864 after the annexation of the United States of the Ionian Islands by the Kingdom of Greece as a gift to George I of Greece by the United Kingdom, features a blue field surrounded by a golden border and a thicker dark red one. It is defaced with an Ancient Greek Galley which is surrounded by a circle and the words «ΔΗΜΟΣ ΚΕΡΚΥΡΑΙΩΝ» meaning "MUNICIPALITY/PEOPLE OF THE CORFIOTS". |
| 1864 – | Flag of Zakynthos | The flag of the island of Zakynthos, adopted in 1864 after the annexation of the United States of the Ionian Islands by the Kingdom of Greece as a gift to George I of Greece by the United Kingdom, features a Green field with a golden depiction of Zakynthos, the figure from Ancient Greek Mythology after whom the island was named. Near the top left side of Zakynthos the name of the island in Greek is written while under the depiction is the island's motto, «ΘΕΛΕΙ ΑΡΕΤΗ ΚΑΙ ΤΟΛΜΗ Η ΕΛΕΥΘΕΡΙΑ» by the Zakynthian poet Andreas Kalvos. |
| 1821 – | Flag of Psara | The flag of the island of Psara, adopted in 1821 during the Greek Revolution, is almost identical in style and design to the flags of Hydra, Spetses and other islands with some differences. The field is white and the surrounding border is red while all the symbols it is defaced with are all red. The symbols are also almost identical though instead of a dove there is an eagle, probably a reference to the Eagle of Zeus, a symbol of power and authority. The flag features the words «ΕΛΕΥΘΕΡΙΑ Ή ΘΑΝΑΤΟΣ» and «ΨΑΡΑ». |
| 1821 – | Flag of Mani Peninsula | The flag of the island of the Mani Peninsula, adopted in 1821 during the Greek Revolution, features a white field with a blue Greek cross and the phrases «ΝΙΚΗ Ή ΘΑΝΑΤΟΣ» and «ΤΑΝ Ή ΕΠΙ ΤΑΣ». |
| Flag | Date | Use | Description |
| | Flag of Connacht | The flag of Connacht is a heraldic banner of the arms of Connacht, a dimidiated eagle and armed hand. |
| | Flag of Leinster | The flag of the Irish province of Leinster is a banner with the provincial coat of arms: a gold Irish harp with silver strings on a green field. These arms are similar to the arms of Ireland, which have the same device on a field of blue rather than green |
| | Flag of Munster | The flag of Munster consists of three gold crowns on a blue field. The crowns were the arms of Ireland before being superseded by the golden harp in the 16th century. The meaning of the crowns on the flag is not certain, but one possibility is that they may represent three of the medieval Hiberno-Norman lordships in Munster; the O’Briens, the Butlers and the Fitzgeralds. |
| | Flag of Ulster | Ulster is one of the four traditional provinces of Ireland. Only three of the nine counties of Ulster are part of the Republic of Ireland, the other six making up Northern Ireland, part of the United Kingdom. However, the flag is still used to represent Ulster as a whole. The Red Hand of Ulster is a symbol that is either derived from the O'Neill dynasty, then the most prominent Irish clan in Ulster, or the Dextra Dei of early Christian iconography. The gold background featuring a red cross comes from the coat of arms of the Burkes, a Hiberno-Norman noble family. |
| Flag | Date | Use | Description |
| 1999 – | Flag of Abruzzo | |
| 1947 – | Flag of the Aosta Valley | The flag of the Aosta Valley consists of two vertical stripes, sometimes with the arms of the Aosta Valley in the centre. |
| 2001 – | Flag of Apulia | |
| 1973 – | Flag of Basilicata | |
| 1992 – | Flag of Calabria | |
| 1971 – | Flag of Campania | The Campania Region has taken as its emblem the one given the Maritime Republic of Amalfi in its infancy. Said emblem consists of a red stripe on a white field
Regional Law n. 1 of July 21, 1971 |
| 1992 – | Flag of Emilia Romagna | |
| 2001 – | Flag of Friuli-Venezia Giulia | |
| 1992 – | Flag of Lazio | |
| 1992 – | Flag of Lombardy | |
| 1997 – | Flag of Liguria | |
| 1995 – | Flag of Marche | |
| 1995 – | Flag of Molise | |
| 1995 – | Flag of Piedmont | |
| 1999 – | Flag of Sardinia | |
| 1990 – | Flag of Sicily | The current flag was adopted July 28, 1990 under regional law N. 2, Art. 12. The law was later updated in 1998. It was not until January 1, 2000, under regional law N. 1, that the flag was adopted as the official symbol of Sicily, including legislation mandating public display of the flag at all Sicilian public buildings. The flag, officially used by the ancient Kingdom of Sicily, has existed in various forms since 1282.
The flag is rectangular in form and is characterised by the presence of the Trinacria in the centre. It features a softened image of the winged-head of Medusa and three ears of wheat representing the island's fertility. The three bent legs represent the island's three capes or points, while in mythology it is said to represent good luck and prosperity. The background of the flag is divided by a diagonal from left to right, and is coloured gold and red-orange. The colours represent the cities of Palermo and Corleone, respectively, the first two to found a confederation against the Angevin rule. |
| 1983 – | Flag of Trentino-Alto Adige/Südtirol | |
| 1995 – | Flag of Tuscany | |
| 2003 – | Flag of Umbria | |
| 1999 – | Flag of Veneto | |
| Flag | Date | Use | Description |
| 2000 – | Flag of Greater Poland Voivodeship | |
| 28.12.2012 – | Flag of Holy Cross Voivodeship | |
| 2000 – | Flag of Kuyavian-Pomeranian Voivodeship | |
| 1999 – | Flag of Lesser Poland Voivodeship | |
| 27.10.2000 – | Flag of Lower Silesia Voivodeship | |
| 14.04.2004 – | Flag of Lublin Voivodeship | |
| 2000 – | Flag of Lubusz Voivodeship | |
| 25.06.2002 – | Flag of Łódź Voivodeship | |
| 29.05.2006 – | Flag of Mazovia Voivodeship | |
| 21.12.2004 – | Flag of Opole Voivodeship | |
| 30.08.2002 – | Flag of Podlachia Voivodeship | |
| 25.03.2002 – | Flag of Pomerania Voivodeship | |
| 2001 – | Flag of Silesia Voivodeship | |
| 2000 – | Flag of Subcarpathian Voivodeship | |
| 06.08.2002 – | Flag of Warmia-Masuria Voivodeship | |
| 2000 – | Flag of West Pomerania Voivodeship | |
| Flag | Date | Use | Description |
| 1992 – | Flag of Adygea | |
| 1992 – | Flag of Bashkortostan | |
| 2004 – | Flag of Chechnya | |
| 1992 – | Flag of Chuvashia | The flag of Chuvashia consists of a stylized tree of life, a symbol of rebirth, with the three suns, a traditional emblem popular in Chuvash art. |
| 1999 – | Flag of Crimea | |
| 1994 – | Flag of Dagestan | |
| 1994 – | Flag of Ingushetia | |
| 1994 – | Flag of Kabardino-Balkaria | |
| 1997 – | Flag of Kaliningrad Oblast | |
| 1993 – | Flag of Kalmykia | On the flag of Kalmykia, the yellow stands for the sun, the people and the religious faith of the nation. The blue represents the sky, eternity, and steadiness. The lotus is a symbol of purity, spiritual rebirth and happiness. Its five upper petals represent the continents and the lower four stand for the quarters of the globe. Together, they symbolize the will of the Kalmyks to live in friendship and to cooperate with all the nations of the world. |
| 2004– | Flag of Kaluga Oblast | |
| 1996 – | Flag of Karachay-Cherkessia | |
| 1993 – | Flag of Karelia | The national flag of the Republic of Karelia is a rectangle with equal horizontal stripes: the upper stripe is red, the middle one is blue and the lower is green. |
| 1997 – | Flag of the Komi Republic | The flag is a horizontal tricolour composed of three bars of, from top to bottom, medium blue, green, and white. Together, they represent Komi's natural wealth. The blue represents the splendour and spaciousness of the northern sky. The green represents nature, its bounty, and the taiga. The white represents the color of snow, the purity of nature in the north, simplicity, and austerity, as well as Komi being a country in the north. According to a different interpretation, the white represents the equality and unity of the people and cultures living in Komi. |
| 2011 – | Flag of the Mari El Republic | |
| 1995 – | Flag of Mordovia | |
| 1995 – | Flag of Moscow | |
| 1995 – | Flag of Moscow Oblast | |
| 1991 – | Flag of North Ossetia–Alania | |
| 1991 – | Flag of Saint Petersburg | |
| 1991 – | Flag of Tatarstan | |
| 1993 – | Flag of the Udmurt Republic | The cross/star symbol represents the solar sign, a protective symbol that according to folklore protects man from misfortunes. |
| Flag | Date | Use | Description |
| 1918 – | Flag of Andalusia | The flag of Andalusia consists of a horizontal tricolour with the Andalusian arms in the centre. |
| 1982 – | Flag of Aragon | |
| 1982 – | Flag of Asturias | The flag of Asturias is light blue with the Victory Cross slightly left of the centre. |
| 1983 – | Flag of the Balearic Islands | |
| 1978 – | Flag of the Basque Country | |
| 1984 – | Flag of Cantabria | |
| 1982 – | Flag of the Canary Islands | The flag of the Autonomous Community of the Canary Islands is a vertical tricolour of three equal bands of white, blue, and yellow. The state flag includes the Coat of arms of the Canary Islands in the central band; the civil flag omits this. The designs were made official by the Statute of Autonomy of the Canarian Autonomous Community on 16 August 1982. |
| 1982 – | Flag of Castile-La Mancha | |
|
1983 – | Flag of Castile and León | It is formed by the combination of the historical flags of two of the oldest kingdom is the Iberian peninsula in the Middle Ages, the Kingdom of León and the Kingdom of Castile. The joint historical flag dates back to mid 13th century when Ferdinand III, "the Saint", unified the two kingdoms in 1230, inaugurating the Kingdom of Castile and León, later named Crown of Castile. |
| May 25, 1933 – | Flag of Catalonia | The flag of Catalonia consists four red bars on top of a yellow background. One popular legend mentions this flag originating with the streaking of 4 blood-stained fingers across a plain shield. The flag derives from the royal coat of arms of the historical royal family of the Crown of Aragon, House of Barcelona. |
| 1983 – | Flag of Extremadura | |
| 19th century – | Flag of Galicia | The flag of Galicia appeared for the first time in the 19th century, probably based on the colours of the ancient medieval flags of the Kingdom of Galicia. Originally, the flag was a blue St Andrew's Cross over a white field—St Andrew is one of the most popular saints in Galicia. The coat of arms of Galicia was the former flag of the Kingdom of Galicia. Colors blue, white and gold were always related with Galicia. The chalice and the golden crosses on blue background have been its symbol since medieval times. For some time it was thought that it was based on the flag of the maritime province of Corunna, but today it is known that the design is earlier. |
| 1982 – | Flag of La Rioja | |
| 1983 – | Flag of the Community of Madrid | The seven stars represent the stars of the constellation Ursa Minor. They're five-pointed because they represent the five Spanish provinces which surround the Community of Madrid. |
| 1982 – | Flag of the Region of Murcia | |
| 1982 – | Flag of Navarre | |
| 1982– | Flag of the Valencian Community | |
| Flag | Date | Use | Description |
| 1998 – | Flag of Cherkasy Oblast | |
| 2000 – | Flag of Chernihiv Oblast | |
| 2001 – | Flag of Chernivtsi Oblast | |
| 1999 – | Flag of Crimea | Controlled by Russia but recognized as part of Ukraine by most of the international community. |
| 1999 – | Flag of Donetsk Oblast | |
| 2002 – | Flag of Dnipropetrovsk Oblast | |
| 2001 – | Flag of Ivano-Frankivsk Oblast | |
| 1999 – | Flag of Kharkiv Oblast | |
| 2001 – | Flag of Kherson Oblast | |
| 2002 – | Flag of Khmelnytskyi Oblast | |
| 1998 – | Flag of Kirovohrad Oblast | |
| 1995 – | Flag of Kiev | |
| 1999 – | Flag of Kiev Oblast | |
| 1998 – | Flag of Luhansk Oblast | |
| 2001 – | Flag of Lviv Oblast | |
| 2001 – | Flag of Mykolaiv Oblast | |
| 2002 – | Flag of Odessa Oblast | |
| 2000 – | Flag of Poltava Oblast | |
| 2005 – | Flag of Rivne Oblast | |
| 2000 – | Flag of Sevastopol | Controlled by Russia but recognized as part of Ukraine by most of the international community. |
| 2000 – | Flag of Sumy Oblast | |
| 2003 – | Flag of Ternopil Oblast | |
| 1997 – | Flag of Vinnytsia Oblast | |
| 2004 – | Flag of Volyn Oblast | |
| 2001 – | Flag of Zaporizhia Oblast | |
| 2009 – | Flag of Zakarpattia Oblast | |
| 2003 – | Flag of Zhytomyr Oblast | |
