Cobalt
Boys' nameMeaning not yet documented
Cobalt has been given to 23 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 7 recorded.
Babies named Cobalt, 2024
1 in 669,000
Cobalt 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 Cobalt?
Cobalt 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 Cobalt 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 Cobalt. In a class of 30 the chance is Under 1%.
When Cobalts were born
Half of everyone ever recorded as Cobalt was born before 2017 — so the typical Cobalt is around 8 today.
- Biggest decade
- 2010s
- 78.3% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 23
- People you could plausibly meet
2010s — 78.3% of all recorded uses (18).
Is Cobalt 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 (7)
- Years since peak
- 11
- Years
- Year-to-year steadiness
- Not enough data
- Too few years
Spellings of Cobalt
Cobalt is not the most common spelling — Colt is, with 83.8% against Cobalt's 0.07%.
Cobalt by the numbers
The raw record for each sex the name is used for.
Names similar to Cobalt
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Cobalt
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.