Cappy
UnisexBoys' nameGirls' nameMeaning not yet documented
Cappy has been given to 10 babies in the U.S. since 1951. 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 1951, with 5 recorded. It's used for both sexes: 50% boys, 50% girls all-time.
Babies named Cappy, 1951
1 in 737,000
Cappy 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
Girls or boys — Cappy over time
In 1954, Cappy went to 100% girls and 0% boys.
A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.
How common is Cappy?
Cappy had fewer than 5 recorded uses in 2025, so these figures use 1951, the last year it was published.
- Among all babies, 1951
- 1 in 737,000
- 5 of 3,682,692 births
- Among boys only
- 1 in 376,000
- <0.01% of boys
- Rank, 1951
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 510,531 kids
- Even odds of a second one
Where Cappy sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 1951 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 510,531 children born in 1951 and it's an even bet that one of them is another Cappy. In a class of 30 the chance is Under 1%.
When Cappys were born
Half of everyone ever recorded as Cappy was born before 1951 — so the typical Cappy is around 74 today.
- Biggest decade
- 1950s
- 100.0% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 5
- People you could plausibly meet
1950s — 100.0% of all recorded uses (5).
Is Cappy 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 1951 (5)
- Years since peak
- 74
- Years
- Year-to-year steadiness
- Not enough data
- Too few years
Spellings of Cappy
Cappy is not the most common spelling — Casey is, with 73.8% against Cappy's <0.01%.
Cappy by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Cappy
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Cappy
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.