This is a list of flags used in Thailand.
National flag
FlagDateUseDescriptionUsage 1917–present Flag of Thailand Five horizontal stripes of red, white, blue, white and red, the middle stripe twice as wide as the others. The flag colors were officially standardized in 2017. National flag
Royal flags
Royal standards FlagDateUseDescription 1911– Royal Standard of the King of Thailand A yellow plain square flag with a dancing red Garuda in the center. Usually mounted in front of the car boarded by the King. 2019 – Standard of Queen Sirikit the Queen Mother Similar to the Royal Standard in the ratio of 2:3 with swallow-tail end and the royal monogram of Queen Sirikit at the canton.ราชกิจจานุเบกษา, ระเบียบส่วนราชการในพระองค์ว่าด้วยการใช้ การเชิญ การแสดงธงพระอิสริยยศและการถวายความเคารพโดยใช้ธงชัยเฉลิมพล พ.ศ. ๒๕๖๒, เล่ม 136, ตอนพิเศษ 117 ง, 10 พฤษภาคม พ.ศ. 2562, หน้า 2–12 1911– Standard of the Queen of Thailand King's Standard in ratio 2:3 with swallow-tailed end. 1979– Standard for Senior members of the royal family (created for the Princess Mother) Queen's Standard in ratio 2:3 with swallow-tailed end. The blue middle square depicts the Royal Crown atop two bowls on a table flanked by two five-tiered royal umbrellas. 1911– Standard of the Crown Prince of Thailand. Thai king's standard with blue border. 2019 – Standard of Princess Maha Chakri Sirindhorn Dark blue rectangle with the ratio of 2:3 defaced with the Royal Standard. The flag is swallow-tail and has the royal monogram of Princess Maha Chakri Sirindhorn at the canton. 2019 – Standard of Princess Chulabhorn Krom Phra Srisavangavadhana Dark blue rectangle defaced with yellow circle. The circle features the red Garuda. At the canton of the blue field has the royal monogram of Princess Chulabhorn Walailak. The flag is swallow-tail 1911– Standard for the Crown Princess of Thailand. Blue 2:3 rectangle defaced with King's Standard. The flag is swallow-tailed. 1911– Standard for other princes in the Chakri dynasty. Blue square defaced with yellow circle. The circle features red Garuda. 1911– Standard for other princesses in the Chakri dynasty. Standard for the male royalties in ratio 2:3 with swallow-tailed end. 1936– Standard for the Regent of Thailand. A white plain square flag with the Garuda and a shield depicting the National Flag in the center.
Personal royal flags
FlagDateUseDescription 2016–present Personal Flag of King Vajiralongkorn Yellow flag (the King's birthday colour), the middle the depicts the Royal Cypher (ว.ป.ร.: มหาวชิราลงกรณ ปรมราชาธิราช : Mahavajiralongkorn Paramarajadhiraja (Thai equivalent to Vajiralongkorn Rex), topped by the Great Crown of Victory, in between is the Thai numeral of 10. 2019–present Personal Flag of Queen Suthida Purple flag (the Queen's birthday colour), the middle the depicts the Royal Cypher (ส.ท.: สุทิดา : Suthida), the middle is Queen Suthida's Royal Cypher, topped by the Great Crown of Victory. 1977–present Personal Flag of Princess Maha Chakri Sirindhorn Purple flag (the Princess' birthday colour), the middle the depicts the Royal Cypher (ส.ธ.: สิรินธร : Sirindhorn), the middle is the Royal Cypher, topped by the simplified crown. 1982–present Personal Flag of Princess Chulabhorn Walailak Orange flag (the Princess' birthday colour), the middle the depicts the Royal Cypher (จ.ภ.: จุฬาภรณวลัยลักษณ์ : Chulabhorn), the middle is the Royal Cypher, topped by the simplified crown. 2001–present Personal Flag of Princess Ubolratana Rajakanya Red flag (the Princess' birthday colour), the middle the depicts the Royal Cypher (อ.ร.: อุบลรัตนราชกัญญา : Ubolratana), the middle is the Royal Cypher, but not topped by the simplified crown. 1977–present Personal Flag of Princess Soamsawali Purple flag (the Princess' birthday colour), the middle the depicts the Royal Cypher (ส.ส.: โสมสวลี : Soamsawali), the middle is the Royal Cypher, under the Buddhist/Hindu sacred sign of "Unalome". 2019–present Personal Flag of Princess Sirivannavari Nariratana Orange flag (the Princess' birthday colour), the middle the depicts the Royal Cypher (ส.ร.: สิริวัณณวรีนารีรัตน์ : Sirivannavari), the middle is the Royal Cypher, topped by the simplified crown. Personal Flag of Prince Dipangkorn Rasmijoti Blue flag (the Prince's birthday colour), the middle the depicts the Royal Cypher (ท.ป.: ทีปังกรรัศมีโชติ : Dipangkorn), the middle is the Royal Cypher, topped by the simplified crown. 1982–present Personal Flag of Princess Siribhachudabhorn Blue flag (the Princess' birthday colour), the middle the depicts the Royal Cypher (ส.ภ.: สิริภาจุฑาภรณ์ : Siribhachudabhorn), the middle is the Royal Cypher, topped by the glowing tiara. 2016–present Personal Flag of Princess Aditayadornkitikhun Purple flag (the Princess' birthday colour), the middle the depicts the Royal Cypher (อ.ก.: อทิตยาทรกิติคุณ : Aditayadornkitikhun), the middle is the Royal Cypher.
Royal Thai Government flags FlagDateUseDescription 1979– Flag of the prime minister of Thailand White flag in ratio 5:6 with the Prime Minister's seal under the royal crown. 1939– Flag of the agriculture and cooperatives ministry of Thailand Green flag with the Emblem of the Ministry of Agriculture and Cooperatives in the center. The emblem depicts Varuna standing top of a nāga. 1920– Flag of the commerce of Thailand Blue flag with the Emblem of the Ministry of Commerce in the center. The emblem depicts Vishvakarma. 2002– Flag of the culture ministry of Thailand Purple flag with the Emblem of the Ministry of Culture in the center. The emblem depicts a burning baldachin. 1936– Flag of the defence minister of Thailand White flag in ratio 5:6 with the Emblem of the Ministry of Defence in the center. The emblem consists of a red chakra (Army), the dark blue anchor (Navy) and the sky blue wings (Air Force). 2016– Flag of the digital economy and society ministry of Thailand Green flag with the Emblem of the Ministry of Digital Economy and Society of Thailand in the center. The emblem depicts Budha holding a scripture and a sword, with halo. 1892– Flag of the education ministry of Thailand Yellow flag with the Emblem of the Ministry of Education in the center. The emblem depicts a sema Thammachak (boundary marker of a temple with dharmacakra). Flag of the interior ministry of Thailand Blue flag with the Emblem of the Ministry of Interior in the center. The emblem depicts a rajasiha (a lion). 1979– Flag of the president of the National Assembly of Thailand White flag in ratio 5:6 with the National Assembly of Thailand's seal under the royal crown. Flag of the president of the Supreme Court of Thailand White flag in ratio 5:6 with the Supreme Court of Thailand's seal under the royal crown.
Naval flags
FlagDateUseDescription 1917– Naval Jack A national flag with the emblem of Royal Thai Navy in the center: a chakra inserted with an anchor under the Thai royal crown. The design is identical to Thai naval unit colours. Note that all Thai Army, Navy and Air Force unit colours called "Thong Chai Chalermphol (). Naval Ensign A red disc containing a white elephant in regalia centred on the national flag.
Military flags
FlagDateUseDescription 1979– Royal Thai Armed Forces Headquarters Flag Red, Navy blue and Sky blue flag with the emblem of Royal Thai Armed Forces: at the center of the tricolour is a badge of the Headquarters with a golden Chakra, with an anchor with golden chains and golden Wings, surrounded by a golden wreath. (from Flag law B.E.2522 (1979)). Royal Thai Army Flag Red flag with the emblem of Royal Thai Army: a chakra under Unalom and the Thai royal crown with rays flanked by the wreaths (from Flag law B.E.2522 (1979)). Royal Thai Navy Flag Navy blue flag with the emblem of Royal Thai Navy in the white circle (from Flag law B.E.2522 (1979)). Royal Thai Air Force Flag Blue sky flag with the emblem of Royal Thai Air Force: wings with Unalom under the Thai royal crown and rays (from Flag law B.E.2522 (1979)). Flag for Chief of Defence Forces Red, Navy blue and Sky blue flag with the emblem of Royal Thai Armed Forces with five stars underneath. Flag for Commander-in-Chief of the Royal Thai Army Red flag with the emblem of Royal Thai Army with five stars underneath. 1897– Flag for Commander-in-Chief of the Royal Thai Navy Navy blue flag with the emblem of Royal Thai Navy. 1979– Flag for Commander-in-Chief of the Royal Thai Air Force Sky blue flag with yellow borders and the emblem of Royal Thai Air Force with a shield depicting the National flag.
Police flag FlagDateUseDescription 1958– Royal Thai Police Headquarters Maroon red flag with the emblem of the Thai National Police in the center. 1979– Pitak Santiraj flag An honour flag of the Royal Thai Police according to the Thai Flag Act of B.E. 2522 (1979). It has the same characteristics and colors as the National Flag but in the centre of the flag is the coat of arms of Siam during the reign of King Chulalongkorn (Rama V), with the words "To Protect the People's Peace" (พิทักษ์สันติราษฎร์ – pronounce "Pitak Santiraj") embroidered in silver metallic threads embracing the underside of the coat of arms.
Religious flags FlagDateUseDescription 1958– The Dharmacakra flag—Buddhism Yellow is color of Buddhism, the middle the depicts the Red Thammachak, symbol of The Buddhism Organizations and Buddhists in Thailand.1988–The Cross Flag—ChristianityA white rectangle with a red Latin cross in the center, symbol of the Christian Organizations and Christians in Thailand.1997–The Jihad Flag—IslamA black or green rectangle with white Shahada in the center. meaning that "there is no other god but Allah, and Muhammad is the Messenger of Allah," symbol of the Muslim Organizations and Muslims in Thailand.
Diplomatic flags FlagDateUseDescription 1927– Ambassador Standard of Thailand A blue disc containing a white elephant in regalia centred on the national flag. Consular Flag of Thailand Triranga surmounted with blue disc containing a white elephant.
Provincial flags