The Governor of Saint Helena is the representative of the monarch in Saint Helena, a constituent part of the British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha. The governor is appointed by the monarch on the advice of the British government. The current governor of Saint Helena has been Nigel Phillips since 13 August 2022.

Saint Helena is one of the three constituent parts of Saint Helena, Ascension and Tristan da Cunha, a remote British overseas territory. Saint Helena is a volcanic and tropical island, located in the South Atlantic Ocean, some 1,874 km west of mainland Africa, with Angola and Namibia being the closest nations, geographically. The island is located around 1,950 km (1,210 mi) west of the coast of southwestern South Africa, and 4,000 km (2,500 mi) east of Rio de Janeiro, Brazil. Until 2018, the primary method of reaching Saint Helena was by booking a spot on the RMS St Helena—a cargo and post delivery vessel that also ferried visitors—which routinely made the 3,141 km, six-day journey from Cape Town, South Africa.