The Minister of Foreign Affairs of the Kingdom of Tonga is a cabinet minister in charge of the Ministry of Foreign Affairs of Tonga.

It is responsible for conducting foreign relations of the country.

Crown Prince Tupoutoʻa ʻUlukalala has served as foreign minister since 28 January 2025.

The position may be held independently, or in conjunction with other ministerial responsibilities.

† Died in office The following is a list of foreign ministers of Tonga since the country gained independence in 1970:[2]