Marcelo \m(a)-rce-lo, mar-celo\ as a boy's name is a variant of Marcel (French). See for meaning of Marcelo.
The baby name Marcelo sounds like Marcely, Marcello and Marcell. Other similar baby names are Darcel, Darcell, Marzell, Martell, Marcelin, Marceau, Marcio, Mardel, Markell, Markel, Martel, Marvell and Marvel.