Melasio \m(e)-la-sio\ as a boy's name is a variant of Melesio (Spanish, Greek), and the meaning of Melasio is "careful, attentive".
The baby name Melasio sounds like Melacio, Milesio, Meliseo, Melicio and Melecio. Other similar baby names are Manasio, Malakie, Malakia, Malaki, Menashi, Menashe, Melchior and Mellin.