The Baixada Fluminense (]; [ˌbɐ(j)ˈʃadɐ flumɪˈnẽ(j)si]) (literally Fluminense Lowland) is a region in the state of Rio de Janeiro, in southeastern Brazil. It is located on Guanabara Bay, between Rio de Janeiro to the south and the Serra dos Órgãos range of hills to the north.