William
William first appears in US records in 1880. It peaked in 1947, when 67,002 boys were given the name; in 2025 there were 10,545.
Source: US Social Security Administration.
What does William mean?
From the Germanic Willahelm — wil (will) and helm (protection) — “resolute protector.”
Nicknames for William
Names like William
Frequently asked questions
What does the name William mean?
William means Resolute protector. From the Germanic Willahelm — wil (will) and helm (protection) — “resolute protector.”
What is the origin of the name William?
William is of Germanic origin.
How do you pronounce William?
William is pronounced “WIL-yum.”
Is William a boy or a girl name?
William is most commonly used as a boy name.
How popular is the name William?
In 2025, William ranked #9 among boys’ names in the United States, according to U.S. Social Security Administration data.
When was the name William most popular?
William was most popular in 1947, when about 67,002 US babies were given the name that year, according to US Social Security Administration records.
What are common nicknames for William?
Common nicknames for William include Will, Liam, Bill.