Brentley \b-rent-ley, br(en)-tley\ as a boy's name is a variant of Brent (Old English, Celtic), and the meaning of Brentley is "hill, mount".

The baby name Brentley sounds like Brantley and Brently. Other similar baby names are Bentley, Bently, Bentlee, Bentlea, Branley, Brenten, Brinley, Brindley and Grantley.