Larreta is a surname. Notable people with the surname include:
Alberto Rodríguez Larreta (1934–1977), Argentine racing driver Antonio Larreta (1922–2015), Uruguayan writer Eduardo Rodríguez Larreta (1888–1973), foreign minister of Uruguay Enrique Larreta (1875–1961), Argentine art collector Also the Museo de Arte Español Enrique Larreta, named after him Horacio Rodríguez Larreta (born 1965), Argentine politician