Alfonsin \a-lfon-sin, al-fo-nsin\ as a boy's name is a variant of Alfonso (Italian, Spanish). See for meaning of Alfonsin.

The baby name Alfonsin sounds like Alfonsino, Alfonse, Alfons and Alfonsus. Other similar baby names are Alanson, Albinson, Alfonzo, Alfonz and Alfonzus.