Albania (Europe's only Muslim culture)
Official flag of Muslim Kosovo
A state seal of Kosovo
Another flag of Kosovo
Andorra
Euskadi/Basque Country (Spain)
Austria (modern)
Austria-Hungarian Empire (pre-1918)
Belarus/Beyelorusia
Belgium
Bosnia (modern)
Bosnia during Islamic occupation (Ottomans)
Catalunya/Flag of Catalans (Spain)
Bulgaria
Croatia
Cyprus
Czech Republic
Denmark
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England
Estonia
Faroe Islands/Foroyar (Danish island)
Finland
Vlaanderen/Flanders (Dutch Belgium)
Post-Revolution France
Pre-Revolution France
Post-WWII Germany
German Eagle
Preußen/Prussia (Germany)
Teutonic Order (vassal of First Reich)
Axis Hungary
Iceland
Ireland
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Italy
Karelija (Finns under Russian rule)
Latvia
Liechtenstein
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Macedonia
Malta
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Transnistria (breakaway state of Moldova)
Poland (modern & historical)
Isle of Man (UK)
Norway
Netherlands
Gibraltar (UK)
Aland Islands (legally Finland, Swedish-speaking population)
Orkney Islands (Scotland)
Portugal
Greece
Romania
Russia (modern)
Soviet Union/USSR
Imperial Russia (pre-1917)
Sardinia (Italy, flag of beheaded Moors)
Saami flag (Laplander Finns)
Scotland (UK)
Serbia
Yugoslavia
Montenegro
Sicily (Italy)
Schlesien/Silesia (today Poland, formerly German)
Slovakia
Slovenia
Spain
Sweden
Switzerland
Tirol (Germans in North Italy)
Transylvania/Siebenbürgen (today Romania, previously Hungary, Austria, Germany)
United Kingdom (and colonies)
Ukraine
Wales (UK)
Wallonia (French Belgium)
Friesland (between Germany & Netherlands)
Shetland Islands (Scotland)