Does Jamaica have a president or a queen?

Jamaica is a constitutional monarchy, with Her Majesty the Queen as head of State.

As per s. 68 of the Jamaica (Constitution) Order-in-Council 1962, the executive authority of Jamaica is vested in Her Majesty the Queen. The executive functions of the Queen are exercised on the advice of the Privy Council (per s. , or the prime minister and ministers, as the case may be; this is referred to as the Queen-in-Council, and forms the executive branch of government for Jamaica.

The Queen is also one of the components of the Parliament of Jamaica (s. 34 of the same Order), alongside the appointed Senate, and the elected House of Representatives. Any bills passed by both Houses must be granted royal assent by the Governor-General (as the Queen's representative) to become law (s. 60 of the Order). The Queen's role here is referred to the Queen-in-Parliament.

The Queen of Jamaica is also the Fount of Justice; decisions of the Supreme Court of Jamaica, and other judicial bodies, are made in the Queen's name. The Governor-General (as the Queen's representative) summons judges to the nation's superior court on the advice of the prime minister. Decisions to remove judges continue to be referred to Her Majesty's Most Honourable Privy Council. The Queen's role here is referred to as the Queen on the Bench.