The Rio Republican Party (Portuguese: Partido Republicano Fluminense, PRF) was a Brazilian political party founded in 1888 to represent the republican ideals of the agrarian elite of Rio de Janeiro. Its principal representative was the Florianist Nilo Peçanha, President of the Republic from 1909 to 1910. The moderate wing, led by governor and senator José Thomaz da Porciúncula, and linked to the São Paulo directorate was hostile to Florianism and did not support him.