Bettie \b(et)-tie\ as a girl's name is a variant of Betty (Dutch, English). See for meaning of Bettie.
The baby name Bettie sounds like Beattie, Beatie, Betti, Bette, Bettye and Bethie. Other similar baby names are Bertie, Lettie, Nettie, Betsie, Bettine, Yettie and Hettie.