Knightley
#16,191 in 2025UnisexGirls' nameBoys' nameMeaning not yet documented
Knightley has been given to 140 babies in the U.S. since 2009. In 2025 it ranked #16,191 of 17,293 girls’ names in use. Its peak year was 2021, with 13 recorded. It's used for both sexes: 76% girls, 24% boys all-time.
Babies named Knightley, 2025
1 in 663,000
Knightley 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 — Knightley over time
In 2025, Knightley 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 Knightley?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 663,000
- 5 of 3,315,165 births
- Among girls only
- 1 in 321,000
- <0.01% of girls
- Rank, 2025
- #16,191
- of 17,293 girls’ names in use
- Coin-flip room size
- 459,581 kids
- Even odds of a second one
Where Knightley 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 459,581 children born in 2025 and it's an even bet that one of them is another Knightley. In a class of 30 the chance is Under 1%.
When Knightleys were born
Half of everyone ever recorded as Knightley was born before 2019 — so the typical Knightley is around 6 today.
- Biggest decade
- 2020s
- 48.6% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 107
- People you could plausibly meet
2020s — 48.6% of all recorded uses (52).
Is Knightley 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
- −3,357
- Places dropped
- Rank vs 5 years ago
- −6,941
- Places dropped
- Rank vs 10 years ago
- −3,754
- Places dropped
- Births vs 10 years ago
- 0.63×
- Fewer babies than then
- Share of its own peak
- 38.5%
- Peak was 2021 (13)
- Years since peak
- 4
- Years
- Year-to-year steadiness
- Shifting
- 23.8% average annual change
Knightley by the numbers
The raw record for each sex the name is used for.
As a girl's name
Names similar to Knightley
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Knightley
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.