Prime Minister of Thailand Prime Minister of Thailand The Prime Minister (; ; ) of Thailand is the head of government of Thailand. The prime minister is also the chair of the Cabinet of Thailand. The post has existed since the Revolution of 1932, when the country became a constitutional monarchy. Prior to the coup d'état, the prime minister is nominated by a vote in the Thai House of Representatives by a simple majority, and is then appointed and sworn-in by the King of Thailand. The house's selection is usually based on the fact that either the prime minister is the leader of the
Prime minister-designate leader of the largest opposition party therefore could still become prime minister-designate perhaps several weeks after the general election. The term prime minister-elect is sometimes used as a synonym, but in most circumstances it is technically incorrect: a prime minister is usually appointed by the head of state, and not elected to office by the entire nation, as is the case with some presidential polls. However, it has nonetheless seen common use in the media. Terms such as incoming prime minister and prime minister-in-waiting are also sometimes used, although the latter term is also sometimes used prior to an election