Xi
#9,664 in 2025UnisexBoys' nameGirls' nameMeaning not yet documented
Xi has been given to 99 babies in the U.S. since 2017. In 2025 it ranked #9,664 of 13,926 boys’ names in use. Its peak year was 2019, with 10 recorded. It's used for both sexes: 53% boys, 47% girls all-time.
Babies named Xi, 2025
1 in 414,000
Xi 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 — Xi over time
In 2025, Xi went to 0% girls and 100% 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 Xi?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 414,000
- 8 of 3,315,165 births
- Among boys only
- 1 in 213,000
- <0.01% of boys
- Rank, 2025
- #9,664
- of 13,926 boys’ names in use
- Coin-flip room size
- 287,238 kids
- Even odds of a second one
Where Xi sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 287,238 children born in 2025 and it's an even bet that one of them is another Xi. In a class of 30 the chance is Under 1%.
When Xis were born
Half of everyone ever recorded as Xi was born before 2022 — so the typical Xi is around 3 today.
- Biggest decade
- 2020s
- 69.2% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 52
- People you could plausibly meet
2020s — 69.2% of all recorded uses (36).
Is Xi 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
- +1,214
- Places climbed
- 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
- 80.0%
- Peak was 2019 (10)
- Years since peak
- 6
- Years
- Year-to-year steadiness
- Shifting
- 15.0% average annual change
Xi around the world
Where Xi 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 & Wales2007–2010#3,865in 2010
- Canada2019–2019#2,769in 2019
Popularity data from Office for National Statistics and Statistics Canada. ONS data under Open Government Licence v3.0. StatCan data under Statistics Canada Open Licence.
Xi by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Xi
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Xi
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.