Brantley \b-rant-ley, br(an)-tley\ as a girl's name (also used as boy's name Brantley), is a variant of Brandy (English). See for meaning of Brantley.
The baby name Brantley sounds like Branndea, Brannde, Brandye, Brandily, Brandie, Brandei, Brandee, Brandea, Brande and Bronte. Other similar baby names are Bentley and Bradley.