Billee \b(il)-lee\ as a girl's name is a variant of Wilhelmina (Old German), and the meaning of Billee is "will helmet, protection".

The baby name Billee sounds like Billie, Billye, Bilee and Billey. Other similar baby names are Millee, Ailee, Aillie, Belle, Millie, Baylee, Baillie, Bailley, Bailee, Billy, Billi, Billa, Callee, Kallee, Mille, Dollee, Ellee, Gillie, Hille, Hellee, Hollee, Jillie, Jullee, Kellee, Kilee, Lillie, Lilley, Tillie, Mollee, Pollee, Rilee, Sallee, Tallee, Tilley, Vallee and Willie.