Billie is a unisex name that has been used for both boys and girls since the 1900s. It was initially used as a nickname for the classic name William, but it has since become a standalone name with its own popularity. It has a playful and youthful vibe, making it a popular choice for parents who want to give their child a name that's both cute and unique.
Diminutive form of William or Wilhelmina, meaning "resolute protector" or "willful helmet". Diminutive of Bill. It is also used as a feminine form of William. Billie can be used as a standalone name or as a nickname for William or Wilhelmina. It's a versatile name that can work for both boys and girls, making it a popular choice for parents who want a gender-neutral name or don't want to stick to traditional gender norms.
Billie also originates as a pet form of the name William. Although the name is unisex, this particular spelling is favoured for girls.
Although the name is unisex, this particular spelling is favoured among girls.