Meaning and Name Origin
Billa \b(il)-la\ as a girls' name is of Old English and Old German derivation, and the meaning of the name Billa is "determined protector". Billa is a form of Billie (Old English): originally a nickname for William. Billa is also a derivative of Wilhelmina (Old German): the second element of the source phrase literally refers to a helmet.
Billa has 31 different forms via Billie, Wilhelmina: Bilee, Billee, Billey, Billi, Billiejo, Billina, Billy▼, Billye▼, Ellma, Elma▼, Guillema, Helma, Min, Mina▼, Minna▼, Minny, Valma, Velma▼, Vilma▼, Wileen, Willa▼, Willeen, Willene▼, Willetta, Willie▼, Willmina, Willy, Wilma▼, Wilmina, Wilna and Wylma.
Billa is an unusual first name for females but a very prominent last name for all people (#30735 out of 88799, Top 35%). (2000 U.S. Census)
Below is a graphed comparison of the popularity of the girl name Billa and related names. Popular varying forms of Billa (#unlisted) listed in the Top 1000 are Billie, Billy, Billye, Elma, Helma, Mina (#687 in 2014), Minna, Velma, Vilma, Wilhelmina, Willa (#549), Willene, Willie and Wilma. These girl names reached the peak of their popularity during 1920-1929 and are now significantly less popular, with versions such as Vilma, Wilhelmina, Willene, Willie and Wilma falling out of fashion. (2014 Birth Statistics)
Billa is alike in pronunciation to Baila, Bailly, Bayla, Belia, Bella▲, Beula, Beyla and Byla. Other recommended similar baby names are Bell▼, Belle▼, Cilla, Dilla, Lilla▼, Milla, Rilla▼ and Zilla. These names tend to be more frequently used than Billa.