The High Commissioner of the United Kingdom to Cyprus is the United Kingdom's foremost diplomatic representative in the Republic of Cyprus.
Previously a territory of the Ottoman Empire, a British protectorate under Ottoman suzerainty was established over Cyprus by the Cyprus Convention of 4 June 1878. The United Kingdom declared war on the Ottoman Empire on 5 November 1914 and annexed Cyprus. Turkey recognised British possession of Cyprus by the Treaty of Lausanne on 24 July 1923 and the island became a Crown Colony on 10 March 1925. Following the Zürich and London Agreement of 19 February 1959, Cyprus became independent on 16 August 1960. The Republic of Cyprus is a member of the British Commonwealth, so the British diplomatic representative is a High Commissioner.