Beagin \be(a)-gin\ as a boy's name is a variant of Beagan (Irish, Gaelic), and the meaning of Beagin is "small one".
The baby name Beagin sounds like Beegin and Beagen. Other similar baby names are Bergin, Bain, Beacon, Beegan, Beaman, Beamon, Beamen, Bergen, Birgin, Bevvin, Bevin, Beaven, Beavan, Biagio, Blain, Brain, Fagin, Keagen, Reagen and Regin.