Josaia Voreqe "Frank" Bainimarama CF (MIL) OStJ MSD (Fijian pronunciation: [tʃoˈsɛia βoˈreŋɡe mbɛiniˈmarama]; born 27 April 1954) is a Fijian former politician and naval officer who served as the prime minister of Fiji from 2007 until 2022. A member of the FijiFirst party, which he founded in 2014, he began his career as an officer in the Fijian navy and commander of the Fijian military. Despite being suspended from Parliament, he served as the opposition leader from 24 December 2022 until 8 March 2023, when he resigned and was replaced by Inia Seruiratu.

Bainimarama attended Marist Brothers High School, the Asian Institute of Technology and Dalhousie University. He joined the Fijian Navy in 1975 and rose through the ranks, becoming an able seaman and a midshipman in 1976, an ensign in 1977, and later promoted to a sub-lieutenant at the end of that year. He was promoted to lieutenant-commander in 1986 and became a commander in 1988. He later became captain in 1991. In 1997, he was appointed Chief of Staff of the Republic of Fiji Military Forces.

In 1998, he was promoted to a commodore and later became the commander of the Armed Forces in 1999. In 2000, during a coup attempt, he convinced the President of Fiji Kamisese Mara to resign and formed an interim military government, which negotiated with the coup leaders. The military government was replaced by a civilian one by the end of the year. He relinquished command of the military in 2014, and in recognition of his military service, he was promoted to rear admiral.

Bainimarama instigated the 2006 coup, removing Prime Minister Laisenia Qarase from power. He later restored Ratu Josefa Iloilo as president and himself as prime minister in 2007. Bainimarama promised the return of elections and democracy in 2014 and formed a party named FijiFirst. In the 2014 Fijian general election, FijiFirst won a majority, and Bainimarama was sworn in as prime minister of Fiji by President Epeli Nailatikau. In the 2018 Fijian general election, FijiFirst won an outright majority, and Bainimarama became prime minister for a second term on 20 November 2018. In the 2022 Fijian general election, FijiFirst won a plurality but was unable to form a government, meaning Bainimarama ceased to be prime minister after 16 years of rule, making him the second-longest-serving prime minister of Fiji after Kamisese Mara. He was succeeded by the leader of the 1987 Fijian coups d'état, Sitiveni Rabuka.

Bainimarama resigned from Parliament and as the leader of the opposition in March 2023. The next day, he was charged with abuse of office over allegations he and police commissioner Sitiveni Qiliho interfered with an investigation into financial mismanagement at the University of the South Pacific. On 14 March 2024, the High Court of Fiji convicted him of attempting to pervert the course of justice. On 9 May 2024, he was sentenced to one year in prison.

Bainimarama's naval career spans three decades. He has received a number of honours for his service. He has been made an Officer Brother in the Order of St John of Jerusalem, and has received the Meritorious Service Decoration, the Peacekeeping Medal for United Nations peacekeepers, the General Service Medal, the Fiji Republic Medal, and the 25 Anniversary Medal.

Following his education at Marist Brothers High School, Bainimarama enlisted with the Fijian Navy on 26 July 1975 and rose smoothly through the ranks, becoming an able seaman in August 1976, a midshipman in December the same year, and an ensign on 1 November 1977.

After completing the Midshipmen's Supplementary Course in Australia, he was appointed navigation officer of RFNS Kiro in August 1978. At the end of that year, he was promoted to sub-lieutenant. In January 1979, Bainimarama embarked on the Chilean naval training ship, the Buque Escuela Esmeralda, which spent six months circumnavigating South America. On his return to Fiji in August, Bainimarama was appointed executive officer of RFNS Kiro.