Jarreth \j(a)-rre-th\ as a boy's name is a variant of Jareth (American). See for meaning of Jarreth.
The baby name Jarreth sounds like Jarrett and Jarret. Other similar baby names are Garreth, Gareth, Jarrott, Jarrot, Garrith, Japheth, Jarrah, Jarred, Jarrell, Jarrel, Jereth, Jarlath, Jarleath, Jarren, Jerrett and Jarett.