Dhani Nivat, the Prince Bidyalabh Bridhyakon was a member of the Chakri dynasty and Thai courtier. Previously known as Prince Dhaninivat Sonakul, he received princely rank in 1922. Prince Dhani served many Thai monarchs as Minister of Education and as President of the Privy Council; in the latter capacity he acted as regent for King Bhumibol Adulyadej on three separate occasions. The prince was also known for his academic writings on Thai history and culture. He served as president of the Siam Society for over 20 years.

The Privy Council of Thailand is a body of appointed advisors to the Monarchy of Thailand. The council, as the Constitution of Thailand stipulates, must be composed of no more than eighteen members. The council is led by the President of the Privy Council of Thailand, currently occupied by former Prime Minister Surayud Chulanont since 27 May 2019. The king alone appoints all members of the council. The council's offices are in the Privy Council Chambers, Phra Nakhon District, Bangkok.