George Tupou II was the King of Tonga from 18 February 1893 until his death. He was officially crowned at Nukuʻalofa, on 17 March 1893. He was also the 20th Tuʻi Kanokupolu.

George Tupou I, originally known as Tāufaʻāhau I, was the first king of modern Tonga. He adopted the name Siaosi, the Tongan equivalent of George, after King George III of the United Kingdom, when he was baptized in 1831. His nickname was Lopa-ukamea, meaning iron cable.