Pius \pius\ as a boy's name is a variant of Pio (Latin), and the meaning of Pius is "pious".

The baby name Pius sounds like Boas, Pace, Paice and Paz. Other similar baby names are Aias, Ries, Gus, Guus, Caius, Deus, Pip, Gaius, Pipo, Pino, Pats, Paul, Poul, Piet, Phips, Piers, Pike, Pitt, Pons and Zeus.