The Royal Flags of Thailand (Thai: ธงประจำพระองค์) are flags that are usually flown in Thailand along with the National flag to honor the King and Queen as well as
the Royal Family of Thailand. Unlike the Royal Standards that are only displayed in special ceremonies and in particular locations, the royal flags are a ubiquitous
sight all over Thailand. They are not seen outside the country.
1946-Present
Personal Flag of King Bhumibol Adulyadej
Yellow flag (the King's birthday colour), the middle the depicts the Royal Cypher, topped by the Great Crown of Victory, in between is the Thai symbol for Aum.
From 1873 to 1910 Thailand (then known as Siam) had a heraldic style coat of arms as a national emblem. The coat of arms was created during the reign of King
Chulalongkorn (Rama V), who ordered his cousin His Highness Prince Pravij Jumsai to draw up a European style coat of arms in 1873.
Emblem of the House of Chakri
The House of Chakri founded in 1782 by King Buddha Yodfa Chulaloke (or King Rama I) became the Royal House of Siam, and then later Thailand. King Rama I himself
choose both name and the emblem for the dynasty. The Chakra which provides both name and the pictoral representation to the House of Chakri, is composed of the discus
(Chakra) and the trident (Trisula), the celestial weapons of the Gods Narayana and Shiva respectively. The Siamese King is seen as a personification of the former. The
coined name Chakri thus denotes the transcending force of divine strength and stability upon the physical realm.
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1700-1855
Ensign of Siam, use as state ensign until 1782 |
1782–1817
State ensign of Siam
Red flag with a white chakra. |
1817–1855
Red flag with a white elephant inside the chakra. |
1855–1916
A white elephant facing to the hoist in the red flag. "Thong Chang" (the elephant flag).
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1916–1917
State flag and ensign of Siam
Red flag with a white elephant in regalia. |
1916–1917
Current civil flag and former ensign of Siam
Five horizontal stripes flag like the "Trairanga" but the middle stripe is red.
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Seal of Siam, which featured Garuda, Naga and Lord Vishnu. It was used as a royal seal before Rama V's reign.
Seal of Siam. Drawn by Prince Naris to replace the coat of arms. It was only used for a short period.
Current version of Seal of Thailand. This version is used as the center part of the Thai royal seal, which is made by adding king's ceremonial name around it.
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1917–1918
War flag of Siam (World War I), Obverse
Triranga defaced with a red disc containing dressed white elephant, facing a flagpole. Briefly, its appearance is the same as naval ensign, but both
red banners of the flag contains motto in Thai script. |
1917–1918
War flag of Siam (World War I), Reverse
Triranga defaced with a red disc containing Vajiravudh's personal emblem. The emblem features Thai acronym "ร.ร." and Thai digit six ("๖"), both are
displayed under the glowing crown. Both red banners of the flag contains motto in Thai script as same as obverse.
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1912–1917
Ambassador Standard of Siam - State flag with blue circle at its canton. The circle contains Garuda holding crown.
1912–1917
Consular Flag of Siam - State flag with blue circle at its canton. The circle contains Garuda with outstretched wings.
1917–1927
Ambassador Standard and Consular Flag of Siam - Triranga surmounted with white elephant, facing a pole.
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'Thong Chom Klao' (ธงจอมเกล้า), Standard of King Mongkut
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'Thong Aiyarapot' (ธงไอยราพต), 'Absence' standard (used when the King is not in residence).
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Thong Boromrajawat Maha Siaminthra' (ธงบรมราชธวัชมหาสยามินทร์), Royal Standard of Chulalongkorn
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'Thong Chudhathipathai' (ธงจุฑาธิปไตย), 'Absence' standard, with the Royal Cypher of King Rama V
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1950-Present
Personal Flag of Queen Sirikit
Blue flag (the Queen's birthday colour), the middle is Queen Sirikit's Royal Cypher, topped by the Great Crown of Victory.
1911-Present
Standard of the Queen of Thailand
Currently used by Queen Sirikit.
1972-Present
Personal Flag of Crown Prince Maha Vajiralongkorn
Yellow flag (the Crown Prince's birthday colour), the middle is the Crown Prince's Royal Cypher, topped by the Great Crown of Victory, with a small "Chakri" (discus and trident, the emblem of the Royal House of Chakri) beneath the Crown.
1977-Present
Personal Flag of Princess Maha Chakri Sirindhorn
Purple flag (the Princess’ birthday colour), the middle is the Royal Cypher, topped by the simplified crown.
1911-Present
Standard of the Crown Prince of Thailand (ธงเยาวราชฝ่ายหน้า: Thong Yaowarat Fai Na)
Flag of Bangkok
Green Flag with the Seal of the Bangkok Metropolitan, in white at the center. Used by the Bangkok Metropolitan Administration and the Governor of Bangkok.

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