Williamm
Boys' nameMeaning not yet documented
Williamm has been given to 11 babies in the U.S. since 1957. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1958, with 6 recorded.
Babies named Williamm, 1958
1 in 689,000
Williamm over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Williamm?
Williamm had fewer than 5 recorded uses in 2025, so these figures use 1958, the last year it was published.
- Among all babies, 1958
- 1 in 689,000
- 6 of 4,133,550 births
- Among boys only
- 1 in 354,000
- <0.01% of boys
- Rank, 1958
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 477,528 kids
- Even odds of a second one
Where Williamm sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 1958 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 477,528 children born in 1958 and it's an even bet that one of them is another Williamm. In a class of 30 the chance is Under 1%.
When Williamms were born
Half of everyone ever recorded as Williamm was born before 1958 — so the typical Williamm is around 67 today.
- Biggest decade
- 1950s
- 100.0% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 11
- People you could plausibly meet
1950s — 100.0% of all recorded uses (11).
Is Williamm rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- —
- Not ranked then
- Rank vs 5 years ago
- New entry
- Not ranked then
- Rank vs 10 years ago
- —
- Not ranked then
- Births vs 10 years ago
- —
- Not published both years
- Share of its own peak
- 0%
- Peak was 1958 (6)
- Years since peak
- 67
- Years
- Year-to-year steadiness
- Not enough data
- Too few years
Spellings of Williamm
Williamm is not the most common spelling — William is, with 99.6% against Williamm's <0.01%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Williamm by the numbers
The raw record for each sex the name is used for.
Names similar to Williamm
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Williamm
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.