Santa Catarina (Brazilian Portuguese: [ˈsɐ̃tɐ kataˈɾĩnɐ] ; ) is one of the 27 federative units of Brazil. It is located in the centre of the country's Southern region. It is bordered to the north by the state of Paraná, to the south by the state of Rio Grande do Sul, to the east by the Atlantic Ocean, and to the west by the Argentine province of Misiones.
The state covers an area of approximately 95,730.69 square kilometres (37,000 sq mi), comparable to Hungary, and ranking as the seventh smallest Brazilian state by area. With a population of 7.6 million inhabitants in 2022, it is the tenth most populous state in Brazil. It is divided into 295 municipalities and its capital is Florianópolis, the second most populous city in the state after Joinville. Alongside Espírito Santo, Santa Catarina is one of the two states whose capital is not the largest city. Jorginho Mello, a member of the conservative Liberal Party, has been the governor of the state since 2023.