Porto Alegre (local ; Joyful Harbour) is the capital and largest city of the Brazilian state of Rio Grande do Sul. Founded in 1769 by Manuel Sepúlveda, its population of 1,509,939 inhabitants (2010) makes it the tenth most populous city in the country and the centre of Brazil's fourth largest metropolitan area, with 4,405,760 inhabitants (2010). The city is the southernmost capital city of a Brazilian state.

Salgado Filho International Airport is the airport serving Porto Alegre, Brazil. It is named after the Senator and first Minister of the Brazilian Air Force Joaquim Pedro Salgado Filho (1888–1950). It is operated by Infraero.