This page shows flags of Thailand, Siam, or one of their predecessors.
Current and historical flags[]
National flag, civil and state ensign of Thailand (1917-present)
Naval ensign (1917-present)
Ambassador Standard of Thailand (1927-present)
Consular Flag of Thailand (1927-present)
State and naval ensign (1893-1917)
Alternative civil ensign (1843 to 1855), national ensign (1855-1893), civil ensign (1893-1916)
State and naval ensign (1817-1855)
State and naval ensign (1782-1817)
Ensign of Siam (c. 1680-1782)
Fictional and ATL flags[]
Flag of Communist Thailand