Cailum
Boys' nameMeaning not yet documented
Cailum has been given to 17 babies in the U.S. since 2014. 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 2014, with 6 recorded.
Babies named Cailum, 2024
1 in 669,000
Cailum 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 Cailum?
Cailum had fewer than 5 recorded uses in 2025, so these figures use 2024, the last year it was published.
- Among all babies, 2024
- 1 in 669,000
- 5 of 3,342,801 births
- Among boys only
- 1 in 345,000
- <0.01% of boys
- Rank, 2024
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 463,412 kids
- Even odds of a second one
Where Cailum sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2024 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 463,412 children born in 2024 and it's an even bet that one of them is another Cailum. In a class of 30 the chance is Under 1%.
When Cailums were born
Half of everyone ever recorded as Cailum was born before 2020 — so the typical Cailum is around 5 today.
- Biggest decade
- 2020s
- 64.7% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 17
- People you could plausibly meet
2020s — 64.7% of all recorded uses (11).
Is Cailum 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 2014 (6)
- Years since peak
- 11
- Years
- Year-to-year steadiness
- Not enough data
- Too few years
Spellings of Cailum
Cailum is not the most common spelling — Callum is, with 66.7% against Cailum's 0.07%.
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.
Cailum around the world
Where Cailum ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- England & Wales1996–2012#4,805in 2012
- Northern Ireland1997–2021#374in 2021
- Ireland1999–2021#755in 2021
- Canada2015–2018#2,905in 2018
Popularity data from Office for National Statistics, Northern Ireland Statistics and Research Agency, Central Statistics Office and Statistics Canada. ONS, NISRA data under Open Government Licence v3.0. CSO data under CC BY 4.0. StatCan data under Statistics Canada Open Licence.
Cailum by the numbers
The raw record for each sex the name is used for.
Names similar to Cailum
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Cailum
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.