# List of flags of the Royal Thai Armed Forces

Most of the flags used by the Thai military today were stipulated in the Flag Act of 1979 (พระราชบัญญัติ ธง พ.ศ. ๒๕๒๒).

## Head of the Armed Forces

| Flag | Date | Use | Description |
| | 1910–present | Garuda war flag of the king (ธงชัยพระครุฑพ่าห์น้อย: Thongchai Phra Khrut Phah Noi) | The war flags are used only by the King of Thailand, who is the constitutional Head of the Royal Thai Armed Forces. The flags were created by King Vajiravudh in 1910. In accordance with ancient tradition the flags are to be used as a pair, with the Garuda flag always to the king's right and the Hanuman flag to the king's left; perhaps as a signal to soldiers in ancient times, the location and the direction of travel of the king. The flags are always carried by two officers of the King's guard and accompanies the king (when in military uniform) when he travels in a royal procession or military parade. The flags only appear in rare royal ceremonies, such as the Thai Royal Guards parade. Unlike the Royal Standard of Thailand, which is to be used on every occasion when the king is present. |
| | 1910–present | Hanuman war flag of the king (ธงชัยราชกระบี่ยุทธน้อย: Thongchai Raja Krabi Yut Noi) | The war flags are used only by the King of Thailand, who is the constitutional Head of the Royal Thai Armed Forces. The flags were created by King Vajiravudh in 1910. In accordance with ancient tradition the flags are to be used as a pair, with the Garuda flag always to the king's right and the Hanuman flag to the king's left; perhaps as a signal to soldiers in ancient times, the location and the direction of travel of the king. The flags are always carried by two officers of the King's guard and accompanies the king (when in military uniform) when he travels in a royal procession or military parade. The flags only appear in rare royal ceremonies, such as the Thai Royal Guards parade. Unlike the Royal Standard of Thailand, which is to be used on every occasion when the king is present. |

## Ministry of Defence of Thailand

| Flag | Date | Use | Description |
| | 1936–present | Flag of the Minister of Defence of Thailand | White flag in the ratio of 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) under the royal Great Crown of Victory. |

## Royal Thai Armed Forces Headquarters

| Flag | Date | Use | Description |
| | 1979–present | Flag of the Royal Thai Armed Forces Headquarters | Flag in the ratio of 2:3, with a yellow border on three sides except for the side facing the flag pole. The center is divided into a tricolour with red, dark blue and sky blue in order from the flag pole out (These represents the colour of the Army, Navy and Air force). 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. |
| | 1979–present | Flag of the Chief of Defence Forces of Thailand | Similar to the Flag of the Royal Thai Armed Forces HQ but with five yellow stars surrounding the bottom of the badge. |

## Royal Thai Army

| Flag | Date | Use | Description |
| | 1979–present | Flag of the Royal Thai Army | Red flag with a ratio of 2:3, with the emblem of the Royal Thai Army: a chakra under the Thai symbol for Aum /Unalome topped by the Great Crown of Victory with rays emanating from the top and surrounded by a wreath. |

### Army unit colour

| Flag | Date | Use | Description |
| | 1979–present | Royal Thai Army unit colours | A square Trairanga with the emblem of Royal Thai Army in middle, surrounded below with the unit's name, and the Royal Cypher of King Bhumibol Adulyadej at top canton. This is the pattern currently issued to the units of the army, except for the battalions of the King's Own Bodyguards, which has its own design. This Colour called "Thong Chai Chalermphol" (ธงชัยเฉลิมพล) which can be translated as "Victory Colours"). |

#### King's Own Bodyguards

| Flag | Date | Use | Description |
| | 1953–present | 1st Infantry Regiment, King's Own Bodyguards unit colours | Trairanga with a red rectangle with a white elephant in regalia at the center. In the top canton is the crowned royal cypher in gold with the name of the unit below. |

### Army command flags

| Date | Use | Description |
| 1979–present | Flag of the Commander-in-Chief of the Royal Thai Army | Red flag in the ratio of 2:3, with the emblem of the Royal Thai Army with five stars underneath. |
| 1979–present | Flag for Regional Commanders | Red flag with the emblem of the Royal Thai Army with three stars underneath. Currently there are four Army regions: the 1st (Central), 2nd (Northeast), 3rd (Northwest) and 4th (South). |
| 1979–present | Flag for Divisional Commanders | Red flag with the emblem of the Royal Thai Army with two stars, one on either side. |

### Army rank flags

| Date | Use | Description |
| 1979–present | Flag for the rank of Field Marshal | Red flag in the ratio of 2:3, with five yellow stars surrounding a badge consisting of a crossed Royal Garuda Baton and a saber surrounded by a wreath of leaves. |
| 1979–present | Flag for the rank of General | Red flag with four yellow stars in the middle |
| 1979–present | Flag for the rank of Lieutenant General | Red with three yellow stars in the middle |
| 1979–present | Flag for the rank of Major General | Red flag with two yellow stars in the middle |
| 1979–present | Flag for the rank of Brigadier General | Red flag with one yellow star in the middle |

### Army identification flag

| Date | Use | Description |
| 1979–present | Identification flag for an Army Corps | Diagonal red and pink flag with the emblem of the Royal Thai Army in the canton, with three stars (arranged horizontally). |
| 1979–present | Identification flag for an Army Division | Diagonal red and pink flag with the emblem of the Royal Thai Army in the canton, with two stars (arranged horizontally). |
| 1979–present | Identification flag for an Army Regiment | Diagonal red and pink flag with the emblem of the Royal Thai Army in the canton. |
| 1979–present | Identification flag for a Cadet Regiment | Diagonal red and yellow flag with the emblem of the Royal Military Academy in the canton. |
| 1979–present | Identification flag for a Special Forces Unit | Diagonal red and pink flag with the emblem of the Royal Thai Army in the canton and the emblem of the Special Forces in the pink half. |
| 1979–present | Identification flag for a Flying Unit | Diagonal red and pink flag with the emblem of the Royal Thai Army in the canton and the emblem of the Flying unit in the pink half. |
| 1979–present | Identification flag for an Infantry Battalion | Diagonal red and white flag, with a red line running counter diagonal, with the emblem of the Royal Thai Army in the canton. |
| 1979–present | Identification flag for a Special Forces Battalion | Diagonal red and white flag, with a red line running counter diagonal, with the emblem of the Royal Thai Army in the canton and the emblem of the Special Forces in the center. |
| 1979–present | Identification flag for a Cavalry Battalion | Diagonal red flag, with a white triangle on the right half and Wedgwood blue triangle at the bottom, with the emblem of the Royal Thai Army on the canton. |
| 1979–present | Identification flag for an Artillery Battalion | Diagonal red flag, with a white triangle on the right half and yellow triangle at the bottom, with the emblem of the Royal Thai Army on the canton. |
| 1979–present | Identification flag for a Cadet Battalion | Diagonal red flag, with a white triangle on the right half and yellow triangle at the bottom, with the emblem of the Royal Military Academy on the canton. |
| 1979–present | Identification flag for an Engineer Battalion | Diagonal red flag, with a white triangle on the right half and black triangle at the bottom, with the emblem of the Royal Thai Army on the canton. |
| 1979–present | Identification flag for a Signals Battalion | Diagonal red flag, with a white triangle on the right half and purple triangle at the bottom, with the emblem of the Royal Thai Army on the canton. |
| 1979–present | Identification flag for a Transport Battalion | Diagonal red flag, with a white triangle on the right half and maroon triangle at the bottom, with the emblem of the Royal Thai Army on the canton. |
| 1979–present | Identification flag for a Medical Battalion | Diagonal red flag, with a white triangle on the right half and green triangle at the bottom, with the emblem of the Royal Thai Army on the canton. |
| 1979–present | Identification flag for a Military Police Battalion | Diagonal red flag, with a white triangle on the right half and navy blue triangle at the bottom, with the emblem of the Royal Thai Army on the canton. |
| 1979–present | Identification flag for an Ordnance Battalion | Diagonal red flag, with a white triangle on the right half and orange triangle at the bottom, with the emblem of the Royal Thai Army on the canton. |
| 1979–present | Identification flag for a Flying Battalion | Diagonal red flag, with a white triangle on the right half and sky blue triangle at the bottom, with the emblem of the Royal Thai Army on the canton and the emblem of the Flying unit in the center. |

### Historical army flags

| Date | Use | Description |
| 1892–1908 | Flag of the Royal Siamese Army | Red flag with the Coat of Arms of Siam at the centre. Created during the reign of King Chulalongkorn (reigning 1868–1910) for the first modern equipped land force in Siam. |
| 1908–1936 | Flag of the Royal Siamese Army | Red flag with a white elephant in regalia. With the appropriate royal cypher in the top canton. |
| 1936–1979 | Flag of the Royal Thai Army | Trairanga with the old emblem of the Royal Siamese Army at the center. The emblem depicts an unalom, inside a chakra. Inside the rim of the chakra is written the phrase: สละชีพ เพื่อชาติ (Willing to give-up life for country). The chakra is surrounded by rays of light. |
| 1936–1938 | Flag of the Commander of the Royal Siamese Army | Trairanga in the ratio of 5:6, with a white Chakra at the center. |
| 1938–1979 | Flag of the Commander of the Royal Thai Army | Trairanga in the ratio of 5:6, with a Chakra and the Great Crown of Victory in yellow. |
| 1892–1897 | Regimental Colours of the Royal Siamese Army. | From the Flag Regulations for the Kingdom of Siam of Rattanakosin Era 110, granted in 1892 A.D. White, in the upper right hand corner of which is the seal of office of the regimental namely: - a small red rectangular ground one sixth of the length by one sixth of the breadth of the flag. In the center of this small red ground is a pedestal of yellow colour on which stands a white, elephant, caparisoned, and facing the flag stall. The colour of the ground of the seal of office varies according to instructions. These Colours are to be used at all Royal festival and receptions, also in Military expeditions. |
| 1908–1910 | Royal Siamese Army unit colours | Square red flag with a white elephant in regalia. With the Royal Cypher of King Chulalongkorn in the canton. The unit's name is written around the cypher. |
| 1910–1925 | Royal Siamese Army unit colours | Square red flag with a white elephant in regalia. With the Royal Cypher of King Vajiravudh in the canton. The unit's name is written around the cypher. |
| 1925–1935 | Royal Siamese Army unit colours | Square red flag with a white elephant in regalia. With the Royal Cypher of King Prajadhipok in the canton. The unit's name is written around the cypher. |
| 1936–1949 | Royal Thai Army unit colours | A square national flag of Thailand (also called the Trairanga). With the old emblem of Royal Thai Army in middle, surrounded below with the unit's name, and the Royal Cypher of King Ananda Mahidol at top canton. |
| 1949–1979 | Royal Thai Army unit colours | A square Trairanga with the old emblem of Royal Thai Army in middle, surrounded below with the unit's name, and the Royal Cypher of King Bhumibol Adulyadej at top canton. |

## Royal Thai Navy

| Date | Use | Description |
| 1979–present | Flag of the Royal Thai Navy | Navy blue flag in the ratio of 2:3, with the emblem of Royal Thai Navy in a white circle. |
| 1917–present | Naval ensign of Thailand | A Trairanga with a red disc containing a white elephant in regalia centred on the National Flag (also known as the 'Trairanga'). |
| 1917–present | Naval jack (and naval unit colour) of Thailand | A Trairanga with the emblem of Royal Thai Navy in the center. |

### Naval command flags

| Date | Use | Description |
| 1897–present | Flag for the Commander-in-Chief of the Royal Thai Navy | Navy blue flag in the ratio of 2:3, with the emblem of the Royal Thai Navy. |
| 1936–present | Flag for the Commander of the Fleet | Navy blue swallow-tailed flag in the ratio of 2:3, with the emblem of the Royal Thai Navy. |
| 1936–present | Flag for the Commander of a Squadron | Navy blue swallow-tailed flag with the emblem of the Royal Thai Navy, the tip of the flag is white. |
| 1936–present | Flag for the Commander of a Base | Navy blue swallow-tailed flag with the emblem of the Royal Thai Navy, the tip of the flag is sky blue. |
| 1936–present | Flag for the Commander of a Coastal Station | Navy blue swallow-tailed flag with the emblem of the Royal Thai Navy, the tip of the flag is red. |
| 1936–present | Flag for the Commander of the Royal Thai Marine Corps | Navy blue swallow-tailed flag with the emblem of the Royal Thai Navy, the tip of the flag is yellow. |

### Naval rank flags

| Date | Use | Description |
| 1979–present | Flag for the rank of Admiral of the Fleet | Navy blue square flag with five white Chakras. The Chakras are positioned with four on each corner and one at the center of the flag. |
| 1979–present | Flag for the rank of admiral | Navy blue square flag with four white Chakras. The Chakras are positioned with four on each corner of the flag. |
| 1979–present | Flag for the rank of vice admiral | Navy blue square flag with three white Chakras. Three Chakras two below and one in the middle of the flag- forming a triangle. |
| 1979–present | Flag for the rank of rear admiral | Navy blue square flag with two white Chakras. Two Chakras parallel vertically. |
| 1979–present | Flag for the rank of commodore | Navy blue square flag with one white Chakra. One Chakra at the center of the flag. |

### Historical naval flags

| Date | Use | Description |
| 1881–1897 | Naval ensign of Siam | Red flag with a white elephant in regalia, with a white Chakra at the top corner. |
| 1898–1912 | Naval ensign of Siam | Red flag with a white elephant in regalia. |
| 1912–1917 | Naval ensign of Siam | Red flag with a white elephant in regalia, with the emblem of the Royal Thai Navy at the top corner. |
| 1855–1881 | Naval jack of Siam | Blue flag with a white elephant. |
| 1881–1917 | Naval jack of Siam | Blue flag with a white elephant in regalia. |

## Royal Thai Air Force

| Flag | Date | Use | Description |
| | 1979–present | Flag of the Royal Thai Air Force | Sky blue flag in the ratio of 2:3, with the emblem of the Royal Thai Air Force: double-wings with the Thai Aum/ Unalome under the Great Crown of Victory with light emanating from the top. |

### Air Force unit colour

| Flag | Date | Use | Description |
| | 1936–present | Royal Thai Air Force unit colours | A square Trairanga with the emblem of the Royal Thai Air Force inside blue circle with yellow border in middle and flanked with unit's name. At the Canton is the King's royal cypher. This colour called "Thong Chai Chalermphol" (ธงชัยเฉลิมพล) which can be translated as "Victory Colours"). |

### Air Force command flags

| Flag | Date | Use | Description |
| | 1979–present | Flag for Commander-in-Chief of the Royal Thai Air Force | Sky blue flag in the ratio of 2:3, with yellow borders and an emblem depicting an escutcheon depicting the National flag, behind are a pair of wings, topped by the Great Crown of Victory, with light rays and a white Aum/ Unalome. |
| | 2025–present | Flag for Commander-in-Chief of the Royal Thai Air Force for Rama X | Yellow flag in the ratio of 2:3, with dark yellow borders and an emblem depicting an escutcheon depicting the National flag, behind are a pair of wings, topped by the Great Crown of Victory, with blue rays and a white Aum/ Rama IX Monument |

### Air Force rank flags

| Date | Use | Description |
| 1979–present | Flag for the rank of Marshal of the Royal Thai Air Force | Sky blue flag in the ratio of 5:6, with five white stars surrounding a badge consisting of a crossed Royal Garuda Baton and a saber surrounded by a wreath of leaves in white. |
| 1979–present | Flag for the rank of Air Chief Marshal | Sky blue flag with four white stars. |
| 1979–present | Flag for the rank of Air Marshal | Sky blue flag with three white stars. |
| 1979–present | Flag for the rank of Air Vice Marshal | Sky blue flag with two white stars. |
| 1979–present | Flag for the rank of Air Commodore | Sky blue flag with one white star. |

### Historical air force flags

| Date | Use | Description |
| 1936–1939 | Flag of the Royal Siamese Air Force Division | Trairanga with the emblem of the Royal Siamese Air Force Division (name later changed to Royal Siamese Air Force in 1937) on a blue background in the center. |
| 1939–1946 | Flag of the Royal Thai Air Force | Trairanga with the old emblem of the Royal Thai Air Force on a blue circle in the center. Top right is the Royal Cypher of King Ananda Mahidol (1935–1946). |
| 1939–1946 | Flag of the Royal Thai Air Force | Trairanga with the old emblem of the Royal Thai Air Force on a blue circle in the center. Top right is the Royal Cypher of King Bhumibol Adulyadej. |
| 1946–1979 | Flag of the Royal Thai Air Force | Trairanga with the emblem of the Royal Thai Air Force on a blue circle in the center. Top right is the Royal Cypher of King Bhumibol Adulyadej. |
| 1936–1979 | Flag of the Commander of the Royal Siamese Air Force | Sky blue flag in the ratio of 5:6, with a yellow Chakra with two wings, topped by the Great Crown of Victory. |

## Historical war flags

| Date | Use | Description |
| 1885–1887 | Standard of the Royal Siamese Army during the Haw wars (ธงจุฑาธุชธิปไตย: Thong Chudhadhujdhippatai) | A red Flag with the Royal Coat of Arms of Siam at the center, with a three borders depicting the blades of a chakra. The flags was presented to Chao Phraya Surasakmontri (Cherm Saeng-Chuto) by King Chulalongkorn in 1885 as a colour for the Siamese army sent to fight the Haw rebels in the north of the country, the war ended in 1890. |
| 1912–1925 | Standard of the Royal Siamese Army under King Vajiravudh (ธงมหาไพชยนต์ธวัช: Thong Mahapachayonthawat) | Created in 1912 by King Vajiravudh. The king intended to have the flag paired with that of his father's. The standard is red with a black rectangle, in the center is the personal symbol of the King. It depicts the Vajra on a two-tiered pedestal with lightning rays emanating from it. Flanked on either side by seven-tired royal umbrellas. |
| 1917–1918 | Standard of the Siamese Expeditionary Force, Obverse | Trairanga defaced with a red disc containing dressed white elephant, facing a flagpole. Briefly, its appearance is the same as naval ensign, but both red stripes contain a portion of the 6th century Chant to the Buddha's Victories written in Pali using Thai script: "พาหุํสหัส์สมภินิม์มิตสาวุธัน์ตํ ค๎รีเมขลํอุทิตโฆรสเสนมารํ ทานาทิธัม์มวิธินาชิตวามุนิน์โท ตัน์เตชสาภวตุเมชยสิทธินิจ์จํ". This flag was carried by the Siamese volunteer corp sent to the war in Europe in 1918, the force and the flag was part of the Allied victory parade under the Arc de Triomphe, in Paris 1919. |
| 1917–1918 | Standard of the Siamese Expeditionary Force, Reverse | Trairanga defaced with a red disc containing King Vajiravudh's personal cypher. The emblem features Thai acronym "ร.ร." and Thai digit six ("๖"), both are displayed under the glowing crown. Both red stripes of the flag contain the same inscription as the obverse. |

## Historical units

| Flag | Date | Use | Description |
| | 1938–1947 | Standard of the Thai Junior Soldiers (ยุวชนทหาร: Yuwachon Thahan) | Trairanga defaced with a red disc, with a yellow border. At the center is the old emblem of the Thai Army. Top canton is the Royal cypher of King Ananda Mahidol. The unit fought bravely against the Japanese army when they invaded Thailand 8 December 1941. |