Manasio \m(a)-na-sio\ as a boy's name is a variant of Manasseh (Hebrew), and the meaning of Manasio is "making forgetfulness".

The baby name Manasio sounds like Manus, Menashi, Menashe and Manzo. Other similar baby names are Melasio, Anisio, Manuelo, Mannie, Mano, Manolo, Manollo, Melesio and Milesio.