
The Most Illustrious Order of Chula Chom Klao was established on 16 November 1873 by King Rama V of The Kingdom of Siam to commemorate the 90th Jubilee of the Chakri Dynasty and bears his name. The pink colour reflects the Tuesday birthday colour for King Rama V.

The Most Noble Order of the Crown of Thailand is a Thai order, established in 1869 by King Rama V of The Kingdom of Siam for Thais, the royal family, governmental employees, and foreign dignitaries for their outstanding services to the Kingdom of Thailand. The order originally had seven classes. The special class was added by King Rama VI in 1918. Formerly called The Most Noble Order of the Crown of Siam.

The Most Admirable Order of the Direkgunabhorn was established by King Bhumibol Adulyadej on 22 July 1991 to be bestowed upon those who have rendered devotional services to the Kingdom of Thailand. The title Direkgunabhorn (ดิเรกคุณาภรณ์) roughly translates as "Noble order of abundance and quality."

The Ancient and Auspicious Order of the Nine Gems was established in 1851 by King Mongkut of the Kingdom of Siam. The order is bestowed upon the members of the Thai royal family and distinguished high-ranking officials who have given service to the kingdom and who are active Buddhist laypeople. In practice, it is the highest Thai order granted to Thai citizens, as the two higher orders are reserved for royalty or foreign heads of state. Members of the order are entitled to use the postnominals น.ร.

The Most Auspicious Order of the Rajamitrabhorn is the highest royal order of Thailand. It was founded on 11 June 1962 by King Bhumibol Adulyadej to be bestowed upon foreign heads of state. Members of the order are entitled to use the postnominals ร.ม.ภ.

The Honourable Order of Rama was established on 22 July 1918 by King Rama VI of the Kingdom of Siam, to be bestowed onto those who have rendered special military services either in peace or in wartime.

The Order of Symbolic Propitiousness Ramkeerati - Boy Scout Citation Medal is established on 26 November 1987 by King Rama IX of Thailand to be bestowed onto those who have rendered constant service and support to Boy Scout activities for at least five consecutive years. Recipients must have received the Boy Scout Citation Medal of Vajira. Members of the order have no post-nominal entitlement.

The Ratana Varabhorn Order of Merit was established on 1 August 1911 by King Rama VI of The Kingdom of Siam to reward personal service to the sovereign. Members are entitled to use the postnominals ร.ว.

The Vallabhabhorn Order was established on 22 March 1919 by King Rama VI of The Kingdom of Siam to reward personal service to the sovereign.

The Most Exalted Order of the White Elephant is an order of Thailand. It was established in 1861 by King Rama IV of the Kingdom of Siam. Along with the Order of the Crown of Thailand, it is regularly awarded to any government official for services rendered to Thailand for five years, making it Thailand's most-commonly awarded order.