Trevyn \t-rev-yn, tr(e)-vyn\ as a boy's name is a variant of Trevin (Old English), and the meaning of Trevyn is "fair town".
The baby name Trevyn sounds like Trevon, Treven and Trevan. Other similar baby names are Tevyn, Arvyn, Devyn, Ervyn, Irvyn, Teryn, Tevin, Tevon, Teven, Tevan, Travys, Travon, Trevonn, Trevion, Trevian, Trevis, Trevor, Trever and Trevar.