Brentin \b-ren-tin, br(e)-ntin\ as a boy's name is a variant of Brent (Old English, Celtic) and Brenton (Old English), and the meaning of Brentin is "hill, mount; Bryni's settlement".
The baby name Brentin sounds like Brantin, Brendin, Brentyn, Brenten and Brentan. Other similar baby names are Brennin and Trentin.