Billy

Billy: name meaning, origin and popularity

Boy name

Pronunciation (IPA): /ˈbΙͺli/

Meaning and origin of Billy

  • A diminutive of the male given name William.

Etymology

Diminutive and pet-form; from Bill + -y.

How popular is Billy?

217U.S. babies in 2025
#19peak rank (1931)
389,665babies since 1880

Since 1880, 5,432 girls and 384,233 boys in the U.S. have been named Billy (1% girls). Its highest rank for girls was #526 in 1930. Its highest rank for boys was #19 in 1931. In 2025, 217 babies were given the name, outside the top 1,000.

188019201960200020259,659 peak/yr
U.S. births per year with this name, 1880–2025 (SSA)

Names similar to Billy

Names that start with the same letters, most popular first.

Sibling name ideas for Billy

Names that peaked around the same time as Billy and are still in the U.S. top 1,000.

Billy FAQ

What does the name Billy mean?

A diminutive of the male given name William. Diminutive and pet-form; from Bill + -y.

How popular is the name Billy?

Since 1880, 5,432 girls and 384,233 boys in the U.S. have been named Billy (1% girls). Its highest rank for girls was #526 in 1930. Its highest rank for boys was #19 in 1931. In 2025, 217 babies were given the name, outside the top 1,000.

Is Billy a boy or girl name?

Billy is mostly a boy name in the U.S.: 5,432 girls and 384,233 boys since 1880.

Popularity data: U.S. Social Security Administration baby name data, 1880–2025 (names given to 5+ babies per year). Origin and etymology text: Wiktionary, available under CC BY-SA 4.0.