MallowbyNames

Willy

WIL-ee · Diminutive of William, meaning 'resolute protection' or 'strong-willed warrior'.

2025 rank (boys)
#3,949
Babies named in 2025
27
Peak popularity
1906
2025 frequency
1 in 63,262 boys
Usually for
Boys
Trend
Declining since 1994

Declining since 1994, #3,949 for boys today.

Popularity of Willy since 1884

Babies named Willy per year in U.S. Social Security records. Raw births topped out in 1993, but relative to how few babies were recorded back then, Willy's real moment was 1906.

234669192019602000Most births 1993Boys
Data table (by decade)
DecadeBoys
1880s5
1890s7
1900s21
1910s115
1920s196
1930s243
1940s282
1950s326
1960s420
1970s379
1980s383
1990s535
2000s503
2010s352
2020s170

Meaning & origin

Willy originated as a familiar nickname for William and became an independent given name in the late 19th century. It reached its peak popularity in 1906, ranking among the top names for boys at that time. Since 1994, its usage has steadily declined, and by 2025 it ranked 3949th, with only about 1 in 63,262 newborns receiving the name. Its trajectory has been falling for decades, reflecting a broader shift away from diminutive forms as stand-alone first names. The name rarely appears in top-state data, indicating a scattered national usage rather than regional concentration. Despite its historical roots, Willy has largely faded from common use, often overshadowed by the longer form William or the alternative spelling Willie.

Willy originated as a medieval English nickname for William, from the Norman French Willaume, itself derived from the Old High German Willahelm, composed of willo (will, desire) and helm (helmet, protection). It was used independently by the 19th century, often as a familiar form before declining in use as a given name in the mid-20th century.

Willy” around the world

Where Willy lands in the latest official birth statistics abroad, matched to the U.S. spelling.

  • France

    10

    babies in 2024

Sources: INSEE (France).

Nicknames & variants

Nicknames: Will

Variants: Willie

Sibling names for Willy

Names that share Willy's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

W is for Willy, our favorite little boy.

W is for Willy…”

In a Mallowby alphabet book, Willy's letter becomes Willy's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Willy's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Willy mean?
Willy is a diminutive of William, meaning 'resolute protection' or 'strong-willed warrior'.
Is Willy a popular name today?
No, Willy is very rare today. In 2025, it ranked 3949th, with about 1 in 63,262 boys given the name.
Is Willy a boy's or girl's name?
Willy is traditionally a boy's name, though it is sometimes used as a nickname for girls named Wilhelmina.