Adelphus \a-del-phus, ad(e)-lphus\ as a boy's name is a variant of Adelphe (Greek), and the meaning of Adelphus is "brother".

The baby name Adelphus sounds like Adolphus, Adelpho and Adelfus. Other similar baby names are Adolph, Dolphus, Adolpho, Adolphe, Adulfus, Alpheus, Dollphus and Rudolphus.