The current King of Thailand is Vajiralongkorn since October 2016. Under the constitution the king is given very little power, but remains a figurehead and symbol of the Thai nation. As the head of state, however, he is given some powers and has a role to play in the workings of government. According to the constitution, the king is head of the armed forces.

He is required to be Buddhist as well as the defender of all faiths in the country. The king also retained some traditional powers such as the power to appoint his heirs, the power to grant pardons, and the royal assent. The king is aided in his duties by the Privy Council of Thailand.