Regin \r(e)-gin\ as a boy's name is a variant of Reginald (Latin), and the meaning of Regin is "ruler's advisor".

The baby name Regin sounds like Regan, Regen and Regino. Other similar baby names are Regis, Beegin, Beagin, Bergin, Fagin, Rain, Reagen, Reagan, Ren, Rubin, Reubin, Robin and Rogan.