Ac
Boys' nameMeaning not yet documented
Ac has been given to 119 babies in the U.S. since 1917. 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 1993, with 10 recorded.
Babies named Ac, 2014
1 in 530,000
Ac 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 Ac?
Ac had fewer than 5 recorded uses in 2025, so these figures use 2014, the last year it was published.
- Among all babies, 2014
- 1 in 530,000
- 7 of 3,706,812 births
- Among boys only
- 1 in 274,000
- <0.01% of boys
- Rank, 2014
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 367,053 kids
- Even odds of a second one
Where Ac sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2014 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 367,053 children born in 2014 and it's an even bet that one of them is another Ac. In a class of 30 the chance is Under 1%.
When Acs were born
Half of everyone ever recorded as Ac was born before 1944 — so the typical Ac is around 81 today.
- Biggest decade
- 1920s
- 29.4% of all use
- Born in the last 25 years
- 34.5%
- Spread across generations
- Recorded since 1950
- 57
- People you could plausibly meet
1920s — 29.4% of all recorded uses (35).
Is Ac 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 1993 (10)
- Years since peak
- 32
- Years
- Year-to-year steadiness
- Shifting
- 20.9% average annual change
Ac by the numbers
The raw record for each sex the name is used for.
Names similar to Ac
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Ac
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.