Hern \he-rn\ as a boy's name is a variant of Ahearn (Celtic) and Herne (Old English), and the meaning of Hern is "horse-lord, heron". The baby name Hern sounds like Herin and Hearn. Other similar baby names are Bern, Herv, Herb, Kern, Tern and Vern. View a list of the 2 names that reference Hern.