Aldin \a-ldin, al-din\ as a boy's name is a variant of Alden (Old English), and the meaning of Aldin is "old friend". The baby name Aldin sounds like Eldin, Aldwin, Aldan and Aldon. Other similar baby names are Adin, Aydin, Alain, Allin, Alin, Alvin, Albin, Alpin, Aldis, Aldrin, Alwin, Aluin, Aloin and Ardin.