Category:Flags by former country

• Burgees by former country‎ (1 C)
• Flags by type of image by former country‎ (4 C)
• SVG flags by former country‎ (4 C)
• Flags on stamps by former country‎ (23 C)
• Variations on flags by former country‎ (6 C)

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• Military flags by former country‎ (14 C)
• National flags by former country‎ (1 C)

A

• Flags of the Republic of Artsakh‎ (3 C, 24 F)
• Flags of Austria-Hungary‎ (12 C, 1 P, 5 F)
• Flags of the Austrian Empire‎ (2 C, 4 F)

B

• Flags of Boer Republics‎ (4 C, 14 F)
• Flags of the Byzantine Empire‎ (5 C, 18 F)

C

• Flags of the Republic of China (1912–1949)‎ (4 C, 2 F)
• Flags of Czechoslovakia‎ (11 C, 4 P, 28 F)

F

• Flags of Prussia‎ (8 C, 1 P, 28 F)

G

• Flags of the German Democratic Republic‎ (13 C, 2 P, 20 F)
• Flags of Gran Colombia‎ (5 C, 2 F)

H

• Flags of Hejaz‎ (2 F)

J

• Flags of the Kingdom of Jerusalem‎ (6 F)

L

• Flags of the Grand Duchy of Lithuania‎ (4 C, 19 F)
• Flags of the Duchy of Lucca‎ (11 F)

N

• Flags of the Netherlands Antilles‎ (4 C, 9 F)

O

• Flags of the Ottoman Empire‎ (12 C, 43 F)

P

• Flags of the Papal States‎ (3 C, 40 F)
• Flags of the Duchy of Parma and Piacenza‎ (2 C)

R

• Flags of Rhodesia (1965–1979)‎ (4 C, 5 F)

S

• Flags of the Principality of Samos‎ (8 F)
• Flags of the Kingdom of Sardinia‎ (2 C, 27 F)
• Flags of Serbia and Montenegro‎ (2 C, 37 F)
• Flags of South African Bantustans‎ (10 C, 1 F)
• Flags of South-West African Bantustans‎ (17 F)
• Flags of the Soviet Union‎ (16 C, 3 P, 53 F)

T

• Flags of Tibet (1912–1951)‎ (1 C, 7 F)
• Flags of the Grand Duchy of Tuscany‎ (2 C)
• Flags of the Tuvan People's Republic‎ (25 F)

U

• Flags of the Ukrainian People's Republic‎ (2 C, 27 F)
• Flags of the United Kingdoms of Sweden and Norway‎ (6 C, 32 F)

W

• Flags of the West Indies Federation‎ (1 C, 2 F)

Y

• Flags of Yugoslavia‎ (13 C, 6 P, 16 F)

Z

• Flags of Zimbabwe Rhodesia (1979)‎ (1 C, 2 F)
• Flags of Zanzibar‎ (1 C, 35 F)